In the middle of our Milky Way, huge "balloon-like structures" have been discovered, scientists say.
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The pair of giant bubbles ̵
1; spanning hundreds of light years – emit radio signals and are among the greatest features ever found in the center of our galaxy.
They are so large that they overshadow all other radio structures in the middle of our galactic neighborhood.  They were probably born after a massive energetic eruption that exploded near the supermassive black hole, researchers said.
"The center of our galaxy is relatively quiet compared to other galaxies with very active central black holes," said Ian Heywood of the University of Oxford, who is the lead author of an article in the journal Nature describing the discovery.
"Nonetheless, the Milky Way's central black hole may, from time to time, become unusually active, burning up massive dust and gas globally at regular intervals, and it is possible that such a frenzy would trigger large outbreaks of this previously invisible feature
The huge structure was discovered by the MeerKAT telescope of the South African Radio Astronomical Observatory (SARAO), with which Professor Heywood and his team mapped the regions English: emagazine.credit-suisse.com/app/art…1007 You searched for radio emissions at a certain wavelength in the middle of our galaxy. The galaxy in search of light.
Related slideshow: Spectacular images from space (Provided by Photo Services)
NASA astronaut Christina Koch has taken this picture of hurricane Dorian from the International Space Station during an overpass on Monday September 2, 2019. The station orbits more than 200 miles above the earth.
16 years ago, NASA launched its Spitzer Space Telescope into orbit around the Sun. Since the observatory's launch on August 25, 2003, it has used infrared light to lift the veil of the wonders of the cosmos from our own solar system to distant galaxies. This sharpener image shows the giant star Zeta Ophiuchi and the bow shock or shock wave in front of it. Visible only with infrared light, the bow thrust is generated by winds that emanate from the star and curl the surrounding dust. Zeta Ophiuchi is about 370 light-years from Earth and dwarfs our sun: it is about six times hotter, eight times wider, 20 times more massive, and about 80,000 times as bright. Even at great distances, it would be one of the brightest stars in the sky it would not be largely obscured by dust clouds.
Full Infrared View of the M81 Galaxy
The magnificent spiral arms of the nearby galaxy Messier 81 are highlighted in this NASA Spitzer Space Telescope image. This galaxy is located in the northern constellation of Ursa Major (which also includes the Big Dipper) and is clearly visible through binoculars or a small telescope. M81 is located at a distance of 12 million light years. M81 was one of the first publicly released records shortly after Spitzers 'launch in August 2003. On the occasion of Spitzers' 16th Anniversary, this new image shows this iconic object with enhanced observations and improved workmanship.
The Eye of Hurricane Dorian
Astronaut Nick Hague posted this photo of Hurricane Dorian on Twitter on September 2, 2019.
What is it about?
Deep Space Antenna 1 is ESA's first 35-meter-deep antenna, which looks into space to communicate with missions that are far from home. Located 140 kilometers north of Perth, Western Australia, near the village of New Norcia, this huge antenna is the perfect place to search the sky. "The Wadjarri from the Murchison region refer to much of the Milky Way as Emu, because it resembles an emu stretched across the sky," says Suzy Jackson, Maintenance & Operations Manager for the ground station. "I've been told that the best time to collect emu eggs is when the nose of the emu reaches the horizon, having our antenna in the foreground only makes it even better, and I'm amazed how beautiful our workplace is here "
A Transient Fantasy
This NASA / ESA Hubble Space Telescope image shows NGC 5307, a planetary nebula about 10,000 light-years from Earth. It can be seen in the constellation Centaurus (The Centaur), which is mainly seen in the southern hemisphere. A planetary nebula is the final stage of a sun-like star. Planetary nebulae give us an insight into the future of our own solar system. A star like our sun will turn into a red giant at the end of its life. Stars are supported by the nuclear fusion that takes place in their nucleus and generates energy. The nuclear fusion processes are constantly trying to tear the star apart.
Caught in the Law
NGC 3351, also known as Messier 95, was first discovered in 1781 by Pierre Méchain, a French astronomer and surveyor who worked with Charles Messier. NGC 3351 is a type of galaxy known as the Barred Spiral Galaxy, located in the Leo constellation. New observations of this object have shown that star feedback is in action. Stellar feedback is the process of redistribution of energy into the interstellar medium (the space between the stars) in star-forming galaxies. In this particular galaxy, star formation takes place in the ring surrounding the galaxy nucleus at such a violent rate that it can actually be seen ejecting massive bubbles of hot gas.
Ready for Engines
Technicians at NASA's Michoud New Orleans site relocated the NASA's Rocket Space Launch System (SLS) engine section on September 3 to another part of the factory to join the United States Kingdom prepare nuclear stage of the rocket. The engine section, which is the lowest part of the 212 foot high stage, is the last major component that is horizontally integrated into the core stage. The flight hardware will be used for Artemis I, the SLS's first lunar mission and the NASA Orion spacecraft. The crews completed the assembly on the engine section on 29th August.
"First Light" from Chandra
NASA's Chandra X-ray Observatory has captured many spectacular images of cosmic phenomena in its two decades. The most famous of these is the supernova remnant Cassiopeia A. Years from Earth, Cas A (as the nickname implies) is the glowing debris field left after the explosion of a massive star. When the star ran out of fuel, it collapsed and exploded as a supernova, possibly becoming one of the brightest objects in the sky for a short time. (Although astronomers believe this was around the year 1680, there are no verifiable historical records to confirm this.) The shockwaves generated by this explosion have charged the star wreck and its surroundings and made the debris shine bright in many types of light X-rays. Shortly after the launch of Chandra aboard the Space Shuttle Columbia on July 23, 1999, the astronomers ordered the observatory to point to Cas A.
It was featured in Chandra's official First Light picture, which was published and tagged August 26, 1999. A groundbreaking moment not only for the observatory, but also for the field of X-ray astronomy.
Photo credit: X-ray image: NASA / CXC / RIKEN / T. Sato et al .; Optical: NASA / STScI
On the safe track
The Northrop Grumman Positioning Motor (ACM) of the Orion Demolition System was successfully tested on 22 August at its Elkton, Maryland facility. The 30-second trial by fire was the penultimate test before being qualified for manned spaceflight on Artemis 2 – the first mission with astronauts. During the static test, the ACM produced more than 7,000 pounds of thrust from eight valves and provided enough power to move Orion and his crew to a safe distance.
The launch abort system was developed to rescue Orion and his crew from the event of an emergency during takeoff or ascent. It consists of three solid rocket engines: the demolition engine pulls the crew module away from the launch vehicle; the ACM controls and aligns the capsule; Then the launch engine fires to disconnect the parachute launch abatement system and a safe landing for the Orion crew. All three engines will be certified for future crewed flights after the qualification tests are completed by the end of this year. The launch abort system underwent a stress test earlier this year as part of the successful Ascent Abort 2 test. These achievements bring Orion closer to a safe flight with astronauts, paving the way for the first woman and man to land on the moon by 2024.
Comet 46P / Wirtanen and a passenger aircraft over the Paranal Observatory.
Rolling Stones Rock
This animation shows NASA's InSight Lander landing on Mars. It rolls a stone 1 meter wide, when the Lander lands on Mars on 26 November 2018 golf ball, the rock was later called by the InSight team in honor of the Rolling Stones "Rolling Stones Rock". A series of about 10 divots marked the course of the rock after it had been set in motion by the landing. It is the farthest NASA that has seen a rock fall after landing a spacecraft on another planet.
"Rolling Stones Rock" is not an official name of the International Astronomical Union, which is responsible for the approval of geographic and geographical names geological features on other planets.
The rock was mapped to InSight's robotic arm using the Instrument Insertion Camera (IDC), which is not visible here.
The picture shows the central part of the Milky Way.
Connecting the Webb
The engineers have reached an important milestone, successfully connecting the two halves of the NASA / ESA / CSA James Webb Space Telescope for the first time at Northrop Grumman's facility in Redondo Beach, California. Once Webb reaches space, he explores the cosmos with infrared light, from planets and moons in our solar system to the oldest and most distant galaxies. To combine both halves of Webb, the engineers carefully lifted the telescope (including mirrors and scientific instruments) with a crane over the already combined sunscreen and spacecraft.
The team members slowly guided the telescope into place, making sure that all primary contact points were perfectly aligned and properly seated. The observatory is mechanically connected; The next steps will be to electrically connect the halves and then test the electrical connections. Later, the engineers will fully deploy the complex five-layer sunscreen that keeps Webb's mirrors and scientific instruments cold by blocking infrared light from earth, moon and sun. Sunscreen's ability to shape itself is critical to mission success. Webb is scheduled to launch in March 2021 with a European Ariane 5 rocket from French Guiana.
Photo of a Dying Star
This atmospheric image, taken with NASA's NASA / ESA Hubble Space Telescope, shows a dark, gloomy scene in the constellation Gemini (the twins). The subject of this image confused astronomers when it was first examined – instead of being classified as a single object, it was instead recorded as two objects due to its symmetrical limp structure (known as NGC 2371 and NGC 2372, although sometimes referred to together) as NGC 2371/2). These two lobes are visible in the lower left and upper right in the frame and together form a so-called planetary nebula. Despite the name, such mists have nothing to do with planets; NGC 2371/2 formed when a sun-like star reached the end of its lifespan and blasted off its outer layers, dumping constituent material and pushing it into space to leave only an overheated star remnant.
This remnant is visible like the bright star in the middle of the frame, which sits neatly between the two lobes. The structure of this region is complex. It is filled with dense gas knots, fast-moving jets that seem to change direction over time, and expansive clouds of material streaming outward on diametrically opposite sides of the remaining star. Spots on this scene shine brightly when the remaining star emits high-energy radiation, which excites the gas in these regions and causes it to light up. This scene will continue to change in the next thousand years. Eventually, the node lobes dissolve completely and the remaining star cools off and darkens to a white dwarf.
Photo credits: ESA (European Space Agency)
The ESA astronaut Luca Parmitano has taken this image of the Bahamas from the International Space Station and shared it in his social media channels: "Bahamas: the colors of a Corto Maltese adventure, the blue of a Hugo Pratt watercolor.
X-ray of Stellar Remains
This colorful spread of light spots is indeed a record of extremely strong phenomena taking place in a galaxy known as the Messier 83 or M83. M83 is a Barred spiral galaxy some 15 million light-years distant, not unlike our Milky Way galaxy, which is currently undergoing a star-shaped evolution, each year spawning a handful of new stars. While the star pattern of spiral arms is barely visible in this X-ray of the ESA's XMM-Newton Space Observatory, this kaleidoscopic picture tells a different story about the star remnants in this galaxy.
Most of the points in this view represent the endpoints of the stars' life cycle, including remnants of supernova explosions and binary systems with compact star remnants such as neutron stars or black holes that feed on companion star matter. Specifically, the large spot on the lower left in the central area of the galaxy is referred to by astronomers as an ultra-light X-ray source, or ULX, a binary system in which the compact remainder accumulates mass of its companion much faster than a regular X-ray binary file.
The reddish sources in the center correspond to objects in the inner region of M83. The majority of the sources scattered across the image are at the edge of the galaxy, but some of them are foreground stars in our own galaxy, and others correspond to more distant galaxies in the background.
This RGB image combines nine XMM-Newton observations observed between 2003 and 2016 at energies of 0.2-2 keV (shown in red), 2-4.5 keV (shown in green), and 4.5 -12 keV (shown in blue). ,
This image shows a view of stellar families – star clusters and coalescing stellar groups in the Milky Way – identified from data from ESA Gaia's second data release. Families younger than 30 million years are highlighted on the basis of Gaia observations in orange. A recent study using data from Gaia's second data release revealed nearly 2,000 previously unidentified star clusters and moving stellar groups and determined the age of hundreds of thousands of stars, making it possible to detect outstanding "siblings" and their surprising dispositions uncover. The study found that the most massive of these familial groups of stars move through the galaxy in long thread-like configurations billions of years after birth.
Forest Fires in Brazil
An unparalleled number of fires erupted in the Brazilian Amazon rainforest. In this picture, which was taken on August 21, the fire and clouds of smoke are clearly visible.
Cache and Carry
The Bit Carousel, located at the center of the sample caching system of NASA's Mars 2020 mission, is mounted at the forward end of the rover in the High Bay 1 spacecraft assembly at the Jet Propulsion Laboratory Pasadena, California. The carousel contains all the tools that the core drill uses to scan the surface of Mars and is the gateway through which the samples enter the Rover for evaluation and processing. The picture was taken on 5 August 2019.
JPL builds and manages the Mars 2020 Rover for the NASA Science Mission Directorate at the agency's headquarters in Washington.
Webb secondary mirror deployment test
] The secondary mirror, which can be seen in the upper right corner of the image, is one of the most important pieces of equipment in the NASA / ESA / CSA James Webb Space Telescope (JWST) Mission success critical.
The secondary mirror is collapsed at startup together with the other components of the observatory and used as part of a complex choreography that brings the observatory to life once in space. When used as in this view, it faces Webb's iconic honeycomb pattern of 18 hexagonal, gold-coated primary mirror segments. This primary mirror structure can be seen in the lower left of the picture in its folded configuration and shows only 12 segments.
As soon as the observatory is in space, light from distant stars and galaxies first reaches its primary mirror, into which it reflects a focused beam to the secondary mirror. From there, the beam is then directed through the "hole" in the primary mirror structure into the tertiary and specular mirrors and finally to the four scientific instruments that sit behind the primary mirror in this view.
Engineers and Engineers Recently, a key element of the telescope's unfolding choreography was tested by successfully instructing Webb to use the support structure that holds the secondary mirror in place. This is an important milestone in preparing the observatory for its orbit, as proper positioning and positioning of the telescope's secondary mirror is critical to the mission's revolutionary science.
New Portrait of Jupiter
The NASA / ESA Hubble The Space Telescope reveals the intricate, detailed beauty of Jupiter's clouds in this new image taken on June 27, 2019 by Hubble's Wide Field Camera 3. The picture shows the planet's well-known Big Red Spot and a more intense color palette in the turbulent clouds swirling in the planet than in previous years.
The outer reaches of the galaxy
Believe it or not, this long, glowing stripe, speckled with bright bubbles and cloth bags, is a spiral galaxy like our Milky Way galaxy. But how could that be?
It turns out that we are seeing this galaxy named NGC 3432, which from our point of view here on Earth is aimed directly at us. The spiral arms and the bright core of the galaxy are hidden. Instead, we see the thin strip on its outermost foothills. Dark bands of cosmic dust, specks of varying brightness, and pink areas of star formation help to discern the true shape of NGC 3432 – but it's still a challenge! Since observatories such as the NASA / ESA Hubble Space Telescope have seen spiral galaxies in any orientation, astronomers can tell when we accidentally caught one from the side.
The galaxy is in the constellation Leo Minor (the Little Lion). Other telescopes targeting NGC 3432 include Sloan Digital Sky Survey, Galaxy Evolution Explorer (GALEX), and Infrared Astronomical Satellite (IRAS).
Photo credits: ESA (European Space Agency)
Our Sun Today
NASA's Solar Dynamic Observatory was the first mission to be funded by the LWS (Life With a Star) program NASA was launched to understand the causes of solar variability and their impact on the Earth. SDO launched on February 11, 2010, to understand the Sun's impact on Earth and near-Earth space by simultaneously studying the Sun's atmosphere over small space and time scales and in many wavelengths.
The aim of SDO is to predictably understand the solar fluctuations that affect life on Earth and in the technological systems of humanity, by determining how the magnetic field of the Sun is generated and structured and how this stored magnetic The heliosphere and space are transformed into and transformed into solar wind, energetic particles and solar radiation variations. Every day SDO trains the sun in different wavelengths.
Picture published on 6th of August.
Ready to Launch
An Ariane 5 with two telecommunications satellites takes off from the launch pad of the European Space Center in Kourou, French Guiana, on 6 August.
On June 21, 2019, NASA demonstrated the first coordinated maneuver between two CubeSats in near-Earth orbit as part of the NASA Optical Communications and Sensor Demonstration mission.
The twin spaceships, which were about the size of a tissue box, circled Earth at a distance of about eight kilometers when they were making a radio connection to "talk" to each other. A spaceship gave the second a command to activate its engine and close the gap between them. The fuel tanks of both spaceships are filled with water. During this propulsion maneuver, the water was converted into steam by the engines to power the spaceship.
"Demonstrations like these will help drive technology that enables greater and wider use of smaller spaceborne and orbital spacecraft," said Roger Hunter, program manager of the Small Spacecraft Technology program.
The demonstration was designed with a series of security measures to ensure that only a pre-planned and authorized maneuver could take place. While being choreographed on-site by human operators, the demonstration shows that it is possible to plan a series of propulsion maneuvers with on-board processing and to carry out jointly by a group of small spaceships. Cosmic Seagull Colorful and blurry Sharpless 2-296 forms the "wings" of a sky known as the Gull Nebula – named after its resemblance to a seagull in flight. This celestial bird contains a fascinating mix of fascinating astronomical objects. Glowing clouds snake between dark dust streaks and bright stars. The gull nebula – consisting of dust, hydrogen, helium and traces of heavier elements – is the hot and energetic birthplace of new stars.
ISS Transiting the Sun
Amateur astrophotographer Javier Manteca captured this Sun Transit on August 2nd at 17:10 CEST in Fuenlabrada, Spain.
The International Space Station traverses the sun regularly, but often on a very narrow ground path, making it difficult to record. Once you've found the best spot on Earth, timing is a crucial factor: transits of the sun take only half a second. Using a DSLR camera connected to a 150/750 telescope, Javier was able to record the 0.8 seconds the station needed in Full HD at 30 frames per second. The picture consists of these stacked frames.
The galaxy NGC 5866 is 44 million light-years from Earth and has a diameter of about 60,000 light-years – just over half the diameter of our own Milky Way galaxy. From our point of view, NGC 5866 is almost exactly aligned to the edge, so most structural features are invisible. Spitzer detects infrared light, and the red color corresponds to a wavelength that is typically emitted by dust. The clean edges of the dust emission from NGC 5866 indicate that a very flat ring or dust disk orbits the outer periphery of the galaxy. Spitzer made this picture during his "cold" mission, which ended in 2009. The colors represent three infrared wavelengths captured by the infrared array camera instrument. Blue light corresponds to a wavelength of 3.6 microns, which is mainly generated by stars; Green is 4.5 microns and red is 8 microns.
This image from the ESA's Mars Express shows Terra Cimmeria, a region in the southern highlands of Mars.
Approaching the ISS
The SpaceX Dragon freighter approaches the International Space Station as they cruise 265 miles across the Atlantic off the west coast of Namibia.
This image shows a close-up of the Sun and features a golden surface characterized by a series of dark, spotted sunspots, curved filaments, and lighter spots called "plagues" – commonly found lighter regions near sunspots.
Laser Guidance Star
The 8.2-meter VLT unit telescopes at the Paranal Observatory use some of the strongest lasers ever developed for a laser guidance system. In the middle of the picture we see a nice side view of the Milky Way.
About the Moon
This photo, published by the Indian Space Research Organization (ISRO), shows the MkIII Geosynchronous Satellite Launch Vehicle (GSLV), which lifts Chandrayaan-2 from the Satish Dhawan Space Center in Sriharikota, India, on July 22nd. India successfully launched an unmanned spacecraft to the other side of the moon one week after abandoning the mission due to a technical problem.
The moon appears red / orange when it begins to ascend due to light scattering through the Earth's atmosphere. When we see the moon on the horizon, the moonlight has to travel a greater distance of the atmosphere to our eyes. At this time, the light was scattered at the blue end of the visible spectrum, so we only see the longer wavelengths of visible light, yellow, orange or red. If the moon is directly above the sky (as shown in the last picture), the moonlight has to penetrate less through the atmosphere and therefore appears as usual.
SLS View on Mobile Launcher
An illustration of the NASA Space Launch System (SLS) in the Block 1 configuration, where an Orion spacecraft is transported beyond the Moon on the Mobile Launcher , SLS is the only rocket capable of sending the Orion spacecraft, astronauts, and accessories to the Moon on a single mission.
Ahuna Mons on Ceres
This image is based on observations made by the NASA spacecraft Dawn and shows the largest mountain on the dwarf planet Ceres. Dawn was the first mission orbiting an object in the asteroid belt between Mars and Jupiter, and spent time on both the great asteroid Vesta and the dwarf planet Ceres. Ceres is one of only five known dwarf planets in the solar system (Pluto is another). Dawn entered orbit around this rocky world on March 6, 2015, examining its icy, crater-like, uneven surface until it runs out of fuel in October 2018. In this reconstructed perspective view, one of the characteristics of the mission is depicted: a mountain called Ahuna Mons.
A rocket with two satellites will launch on July 25 from the Jiuquan Satellite Launch Center in the northwestern Chinese province of Gansu. A Chinese startup successfully launched the country's first commercial missile capable of launching satellites as a space race between China and the US is heating up.
Seismische Wellen im Mars
Das Konzept dieses Künstlers simuliert, wie seismische Wellen eines Marsbebens aussehen könnten, wenn sie sich durch verschiedene Schichten des Marsinneren bewegen.
Jenseits des Missionsstarts
Es gibt keinen Wunsch nach einem besseren Startdatum. Der ESA-Astronaut Luca Parmitano und sein Expeditionskollege 60/61, der NASA-Astronaut Drew Morgan und der Kosmonaut Alexander Skvortsov, stiegen am 20. Juli, dem 50. Jahrestag der historischen Mondlandung von Apollo 11, zur Internationalen Raumstation ab.
Während andere an Jubiläumsveranstaltungen teilnahmen Luca strömte durch Erinnerungsstücke und wurde in das zuverlässigste Raumschiff geschnallt, um Menschen in den Weltraum zu befördern.
Die Sojus MS-13 stieg um 18:28 Uhr MESZ vom Kosmodrom Baikonur in Kasachstan ab.
Im Integrationsgebäude des Kosmodroms Baikonur in Kasachstan besetzten die Besatzungsmitglieder der Expedition 60 Drew Morgan von Die NASA (links), Alexander Skvortsov von Roscosmos (Mitte) und Luca Parmitano von der ESA (rechts) posieren vor den ersten Motoren ihres Sojus-Boosters als Teil der Vorbereitungen für den Start.
Zu einer Zeit, in der sich die ESA auf die künftige Monderkundung freut, ist bereits eine kleine, aber wichtige von der ESA entwickelte Hardware auf der anderen Seite des Mondes in Betrieb.  Chinas Chang'e-4-Lander wird mit einem LEON2-FT-Mikroprozessorkern betrieben, der speziell für Weltraummissionen von der ESA entwickelt und von der Firma Microchip im Handel als AT697 vertrieben wird.
Die gewöhnlichen Computerchips, die Sie täglich verwenden in Ihrem Telefon oder Laptop würde durch die Strahlung und Umweltextreme des Weltraums schnell abgebaut. Spezialchips sind daher für Raumfahrzeuge unerlässlich.
Chang'e-4, das am 3. Januar 2019 im Von Kármán-Krater auf der anderen Seite des Mondes in der Nähe des Südpols gelandet ist. Der Lander und der von ihm gelieferte Rover halten derzeit während der Mondnacht Winterschlaf
„Zu den meisten ESA-Missionen, die nach etwa 2010 gestartet wurden, gehört mindestens ein LEON-Chip, und Hunderte dieser strahlungsgehärteten Standardchips wurden auch an Weltraummissionen verkauft Sowohl in Europa als auch weltweit “, erklärt der ESA-Mikroelektroniker Agustin Fernandez-Leon.
„ Diese Zahl steigt auf Tausende, wenn wir zusätzlich anpassbare, voll programmierbare Gate-Arrays mit LEON-Kernen zählen “, fügt der ESA-Mikroelektroniker Roland Weigand hinzu. "Der allgemeine Umfang der Nutzung ist derart, dass es unpraktisch ist, alle Missionen zu verfolgen, die unsere Mikroprozessortechnologie nutzen, aber es ist immer schön, dies herauszufinden."
Ein Puzzle mit 10 Millionen Sternen
Bei Betrachtung Mit dem bloßen Auge erscheint Omega Centauri, das Objekt in diesem Bild, als verschwommener, schwacher Stern. Aber die blaue Kugel, die wir hier sehen, ist tatsächlich eine Ansammlung von Sternen – 10 Millionen von ihnen. Sie können nicht alle zählen, aber in diesem scharfen, wunderschönen Bild sehen Sie einige der zahlreichen Punkte hellen Lichts, die diesen einzigartigen Cluster ausmachen.
The image was taken by Wouter van Reeven, a software engineer at ESA's European Space Astronomy Centre near Madrid, Spain, during his recent visit to Chile to observe the July total solar eclipse. From his home base in Spain the cluster only grazes the horizon, making it near-impossible to image, but from the La Silla Observatory in Chile it was high in the sky, presenting the ideal opportunity to photograph it.
Apollo 11 Projected on the Washington Monument
The image of a Saturn V, the rocket that sent Apollo 11 into orbit on July 16, 1969, is projected on the Washington Monument on July 16.
Robotic Arm Over Mongolia
The Canadarm2 robotic arm is positioned for upcoming training activities ahead of the arrival and capture of the SpaceX Dragon cargo craft. The International Space Station was orbiting 257 miles over Mongolia when an Expedition 60 crew member took this photograph.
Aerogel Greenhouses for Mars?
Scientists are exploring how aerogel, a translucent, Styrofoam-like material, could be used as a building material on Mars. Aerogel retains heat; structures built with it could raise temperatures enough to melt water ice on the Martian surface.
A total solar eclipse passed over ESO’s La Silla Observatory in Chile on July 2. The eclipse lasted roughly two and a half hours, with almost two minutes of totality at 20:39 UT, and was visible across a narrow band of Chile and Argentina.
Moon Covers Sun
This image shows the Sun completely covered by the Moon during totality, revealing the solar corona, or the Sun's atmosphere.
Taking to the Skies
A fully functional launch abort system (LAS) with a test version of the Orion crew spacecraft attached soars upward on NASA’s Ascent Abort-2 (AA-2) flight test atop a Northrop Grumman provided booster on July 2, 2019, after launching at 7 a.m. EDT, from Launch Pad 46 at Cape Canaveral Air Force Station in Florida.
Stellar Fireworks Show
Imagine slow-motion fireworks that started exploding 170 years ago and are still continuing. This type of firework is not launched into Earth's atmosphere, but rather into space by a doomed super-massive star, called Eta Carinae, the largest member of a double-star system. A new view from NASA's Hubble Space Telescope, which includes ultraviolet light, shows the star's hot, expanding gases glowing in red, white and blue. Eta Carinae resides 7,500 light-years away.
A Whirlpool Warhol
These four panels show the Whirlpool galaxy — which is actually a pair of galaxies also known as Messier 51 and NGC 5194/5195 — and how different wavelengths of light can reveal different features of a cosmic object. Located approximately 23 million light-years away, it resides in the constellation Canes Venatici.
The left image (a) shows the galaxy in visible light, from the Kitt Peak National Observatory 2.1-meter (6.8-foot) telescope and shows light at 0.4 microns (blue) and 0.7 microns (green). The next image (b) combines two visible-light wavelengths (in blue and green) and infrared light (in red). The infrared was captured by NASA's Spitzer Space Telescope and emphasizes how the dark dust veins that block our view in visible light begin to light up at these longer, infrared wavelengths.
The right two panels are composed entirely of Spitzer data. In the middle-right panel (c), we see three wavelengths of infrared light: 3.6 microns (shown in blue), 4.5 microns (green) and 8 microns (red). The blended light from the billions of stars in the Whirlpool is brightest at the shorter infrared wavelengths and appear as as a blue haze. The individual blue dots across the image are mostly nearby stars and a few distant galaxies. Red features (at 8 microns) show us dust composed mostly of carbon that is illuminated by the stars in the galaxy.
The far-right panel (d) expands our infrared view to include light at a wavelength of 24 microns (in red), which is particularly good for highlighting areas where the dust is especially hot. The bright reddish-white spots trace regions where new stars are forming and, in the process, heating their surroundings.
Coming In For a Landing
The Soyuz MS-11 capsule carrying the International Space Station (ISS) crew of NASA astronaut Anne McClain, Russian cosmonaut Oleg Kononenko and David Saint-Jacques of the Canadian Space Agency, lands in a remote area outside the town of Dzhezkazgan (Zhezkazgan), Kazakhstan, on June 25.
Earth and Moon
Size of Earth and Moon, view from the space.
First Humans on Mars (Artist's Concept)
This artist's concept depicts astronauts and human habitats on Mars. NASA's Mars 2020 rover will carry a number of technologies that could make Mars safer and easier to explore for humans. JPL is building and will manage operations of the Mars 2020 rover for the NASA Science Mission Directorate at the agency's headquarters in Washington.
This artist's illustration depicts a coronal mass ejection, or CME, which involves a large-scale expulsion of material, and has frequently been observed on our Sun. A new study using the Chandra X-ray Observatory detected a CME from a star other than our own for the first time, providing a novel insight into these powerful phenomena.
Using those techniques to look at the huge bubbles – examining their size and shape, and finding that they appear to be almost identical – the researchers were able to find evidence that they suggest shows they were formed in an intense eruption. That seems to have happened over a short period of time, but was so extreme that it punched through the matter of space.
"The shape and symmetry of what we have observed strongly suggests that a staggeringly powerful event happened a few million years ago very near our galaxy's central black hole," said William Cotton, an astronomer with the National Radio Astronomy Observatory in Charlottesville, Virginia, and co-author on the paper.
"This eruption was possibly triggered by vast amounts of interstellar gas falling in on the black hole, or a massive burst of star formation which sent shockwaves careening through the galactic centre. In effect, this inflated bubbles in the hot, ionized gas near the galactic centre, energizing it and generating radio waves that we could eventually detect here on Earth."
The space around our galaxy's black hole is very different to that everywhere else in the Milky Way, far more turbulent and active than any other part of the galaxy. It is also largely mysterious, since it can be so hard to see – there are huge, long and narrow filaments that have not been spotted elsewhere, and which researchers still do not understand.
The new structures could help illuminate those filaments. Both might have been formed by the same mysterious energetic event.
"The radio bubbles discovered by MeerKAT now shed light on the origin of the filaments," said Farhad Yusef-Zadeh at Northwestern University in Evanston, Illinois, and a co-author on the paper. "Almost all of the more than one hundred filaments are confined by the radio bubbles."
Until now, it was not possible to see the structures because they were behind the glare of bright signals coming from the middle of the galaxy. Scientists were able to use new techniques to look through those dazzling emissions and see the new, towering formations.
"These enormous bubbles have until now been hidden by the glare of extremely bright radio emission from the center of the galaxy," said Fernando Camilo of SARAO in Cape Town and co-author on the paper.
"Teasing out the bubbles from the background noise was a technical tour de force, only made possible by MeerKAT's unique characteristics and ideal location. With this unexpected discovery we're witnessing in the Milky Way a novel manifestation of galaxy-scale outflows of matter and energy, ultimately governed by the central black hole."
The new research is published today in Nature, and is written by authors from 15 different institutions. It is the first paper to detail research from the MeerKAT's full array since it was launched last year.