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Why are people left-handed (or right-handed)?

When you first took a crayon as a young child, you probably felt more comfortable and natural drawing with one of your hands than the other. Apart from the small number of truly ambidextrous people – those who can equally use their right and left hands – people generally have a dominant hand (and side of their body) that they …

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Why astronomers worry about the brightness of SpaceX's Starlink satellite mega-constellation

SpaceX plans to launch the second episode of its mega-constellation Starlink on Monday (November 11), and astronomers are waiting to see – exactly what they'll see. When the company launched its first set of Starlink Internet satellites in May. Those with their eyes fixed on the night sky immediately noticed that the objects were incredibly bright. Professional astronomers feared the …

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Oh man, Mercury will pierce the sun

Mercury passes through the sun in 2006. [19690003] Brocken Inaglory ( Wikimedia Commons ) [19659004MercurywillcomehereonMondaystoseethesunshine This will happen again until 2032. The eccentric orbit of the smallest planet means that it does not often pass by the sun from the viewpoint of the earth. This year, part of the 5.5-hour transit from 7:36 am CET will be visible across much …

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From plants, the team extracts a better way to see what our genes are doing

Picture credits: Alexandra Angelich University of Virginia Medical School scientists have developed a better way to determine what our genes do. This allows scientists to better study the genetic causes of disease and to more efficiently determine whether new drugs act on the intended target as needed. The researchers believe that the new tool could revolutionize the study of biological …

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Interstellar Anniversary: ​​What we have learned since then about black holes

The Hollywood blockbuster "Interstellar" by director Christopher Nolan just celebrated his fifth birthday. In the film, Matthew McConaughey plays an astronaut who travels to the supermassive black hole called Gargauntua. To make "Interstellar" scientifically correct, Nolan commissioned physicist Kip Thorne to provide the most realistic representation of a black hole. However, since the release of the film, scientists have learned …

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The next three-man Soyuz crew is training to own the space station – Spaceflight Now

NASA astronaut Chris Cassidy prepares for spacewalk training at the Neutral Buoyancy Laboratory in Houston. Credit: NASA / James Blair The next three-man crew, launching a Soyuz rocket consisting of two Russian cosmonauts and a seasoned NASA astronaut, is training for the International Space Station on their arrival at the encircling research outpost have in April, at least until new …

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Recent studies suggest that the universe is actually a huge loop

The universe could actually be curved, like a giant inflated balloon claims a new study. A study published in the journal Nature Astronomy on Monday examines data from the cosmic microwave background (CMB), which is the faint echo of the "Big Bang" to conclude that the universe is not flat. The results, however, are at odds with years of conventional …

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Volcanic eruption creates a new Pacific island, sinking another one

A volcanic underwater eruption has created an island in the Pacific Ocean near Tonga, while another small island has been sunk nearby. © 2019 HERE / Microsoft tonga The former Lateiki Island is now submerged, according to the news site Matangi Tonga. The site reports, citing geologist Taaniela Kula, that the new Lateiki Island is about 328 feet wide by …

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