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NASA is considering plans to defend the Earth from the fatal blow, and asks SpaceX to help smash it into asteroids




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NASA and others make comprehensive plans to protect Earth from asteroids.

Getty

What would we do if we knew that This question will be asked next week as NASA, the European Space Agency and others prepare for the potential impact of a near-Earth object (NEO) in the future.

No Immediate Threat [Althoughthereisnoimmediatethreatthe International Academy of Astronautics 201

9 Planetary Defense Conference next week at the hotel at the University of Maryland will have an "asteroid impact" Exercise "with a realistic but fictional exercise involves a scenario in which an asteroid is located on Earth's orbit. The scenario was developed by the NASA Jet Propulsion Laboratory Center for NEO studies (CNEOS).

NASA developed. Administrator Jim Bri Denstine will hold the keynote address of the conference while Planetary Society's Chief Executive Officer Bill Nye will attend a panel discussion on asteroid defending Earth. This will be broadcast live on Wednesday, May 1, 2019 here.

Impact craters such as Manicouagan in Quebec, Canada are rare, but NASA, other US agencies and international partners are gathering to simulate impact scenarios and discuss best practices for civil protection.

NASA / International Space Station [19659003] What is a near-Earth object?

A NEO is defined as anything, asteroid or comet, that orbits the sun and is located within 50 million kilometers of Earth's Earth orbit. The exercise is part of the National Near Earth Strategy and the Near Earth Action Plan published by the White House in June 2018. According to estimates of astronomers, there are about 1000 near-Earth asteroids larger than one kilometer. If one of them hit the ground, no amount of preparation would help, but there are many small asteroids that science might be able to do something about.

A SpaceX Falcon 9 rocket will launch NASA's DART mission into space in 2021. Kowsky / NASA via AP)

ASSOCIATED PRESS

What is the scenario?

Astronomers "discover" a NEO called 2019 PDC, which is potentially dangerous to Earth, track it and decide it has a 1 in 100 chance to land in 2027. For NEO observers, 1: 100 is the magic number, meaning it's time to take the threat seriously. After all, the future of humanity could be at stake.

Schematic diagram of the DART mission shows the effects on the moonlet of asteroids (65803) Didymos. Follow-up observations of Earth-based optical telescopes and planetary radar would again measure the change in the orbit of the Moonlet around the parent body.

NASA

& # 39; Simulated Emergency & # 39;

The Simulated Emergency These include NASA's Planetary Defense Coordination Office (PDCO), the European Space Agency's Space Sensitivity NEO segment, and the International Asteroid Warning Network (IAWN). "These exercises really helped us in the planetary defense community to understand what our colleagues in disaster management need to know," said Lindley Johnson, NASA's Planetary Defense Officer.

It is actually NASA's sixth NEO impact exercise, and what has been learned so far is that few local agencies are interested in the technical details of the asteroid. "What emergency managers want to know is when, where and how an asteroid impacts, and what type and extent of damage could occur," said Leviticus Lewis of the Response Operations Department of the Federal Emergency Management Agency (FEMA).

ESA's Hera mission concept, which is under investigation, would be humanity's first mission to becoming a binary asteroid: the Didymos, 780 meters in diameter, is accompanied by a 160-meter secondary body.

ESA – ScienceOffice.org

How would we handle a terrestrial NEO?

Potential NEO strikes have a lot of international cooperation on asteroid mitigation. It's called Asteroid Impact and Deflection Assessment (AIDA) and will be even more fun than it sounds. Smash an asteroid, or rather one of its moons, and study it to see if it has changed course.

How to Distract an Asteroid

NASA's Double Asteroid Redirection Test (DART), planned for launch in June 2021, will be the spacecraft's first asteroid detour mission. Earlier this month, it was announced that NASA had provided $ 69 million to SpaceX to fire one of its Falcon 9s toward asteroid 65803 Didymos (or "Didymain") and its tiny satellite "Didymoon." A binary asteroid that will pass close to Earth in October 2022 (though not a threat), and it is to be hoped that the DART spacecraft will be ready to hit Didymoon until then, using one of its "kinetic Distraction "described technique easy to change The 500 kg DART bumps into the asteroid moon at about 6 km / s and hopefully changes its orbital speed by 0.4 mm / s, which in turn slightly changes the trajectory of Didymos.

Is "Asteroid Forwarding" plausible?

Does DART work? The European Space Agency's Hera follow-up mission, a spacecraft asteroid rendezvous, will tell us if an impactor works. It will examine both the Didymos asteroid and its moon with an "asteroid framing camera", including lasers, a star tracker, a thermal infrared camera, and accelerometers to see if the "asteroid diversion" of DART works or not. It will be located within 200 meters of the Moon and will examine the impact crater left by DART.

Hera scans the surface of Didymoon with his laser altimeter. ESA's Hera missionary concept, which is under study, would be humanity's first mission to becoming a binary asteroid: the Didymos, 780 meters in diameter, will be accompanied by a 160-meter secondary body.

ESA – ScienceOffice.org

However, this will not be a quick result as ESA's Hera mission will not start until October 2023 and Didymos will not reach it until 2026. After that we will hopefully know how asteroids react to it, whether they have penetrated old course.

Then we could be ready if there is an advance warning from "the big one".

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NASA and others make comprehensive plans to protect Earth from asteroids.

Getty

19659035] What would we do if we knew that an asteroid was on a collision course with the This question will be asked next week as NASA, the European Space Agency and others prepare for the possibility of a near-Earth object (NEO) Impact in the future

No immediate threat

Although t is not here Immediate Threat The International Academy of Astronautics 2019 Planetary Defense Conference Next week at the hotel at the University of Maryland will be an "asteroid impact exercise" with a realistic but effective exercise contain a fictional scenario in which an asteroid is on Earth's trajectory. The scenario was developed by the NASA Jet Propulsion Laboratory Center for NEO Studies (CNEOS).

NASA will hold the keynote address of the conference while Bill Nye, chief executive officer of the Planetary Society, will attend a panel discussion on Earth's defense against asteroids. This will be broadcast live on Wednesday, May 1, 2019 here.

Impact craters such as Manicouagan in Quebec, Canada are rare, but NASA, other US agencies and international partners are gathering to simulate impact scenarios and discuss the best disaster preparedness measures.

NASA / International Space Station [19659003] What is a near-Earth object?

A NEO is defined as anything, asteroid or comet, that orbits the sun and is located within 50 million kilometers of Earth's Earth orbit. The exercise is part of the National Near Earth Strategy and the Near Earth Action Plan published by the White House in June 2018. According to estimates of astronomers, there are about 1000 near-Earth asteroids larger than one kilometer. If any one of them hit the ground, no amount of preparation would help, but there are many small asteroids that science might be able to counteract before they strike.

A SpaceX Falcon 9 rocket will launch NASA's DART mission into space in 2021 Kowsky / NASA via AP)

ASSOCIATED PRESS

What is the scenario?

Astronomers "discover" a NEO called 2019 PDC, which is potentially dangerous to Earth, track it and decide it has a 1 in 100 chance to land in 2027. For NEO observers, 1: 100 is the magic number, meaning it's time to take the threat seriously. After all, the future of humanity could be at stake.

Schematic diagram of the DART mission shows the effects on the moonlet of the asteroid (65803) Didymos. Follow-up observations of Earth-based optical telescopes and planetary radar would again measure the change in the orbit of the Moonlet around the parent body.

NASA

& # 39; Simulated Emergency & # 39;

The Simulated Emergency These include NASA's Planetary Defense Coordination Office (PDCO), the European Space Agency's Space Sensitivity NEO segment, and the International Asteroid Warning Network (IAWN). "These exercises really helped us in the planetary defense community to understand what our colleagues in disaster management need to know," said Lindley Johnson, NASA's Planetary Defense Officer.

It is actually NASA's sixth NEO impact exercise, and what has been learned so far is that few local agencies are interested in the technical details of the asteroid. "What emergency managers want to know is when, where and how an asteroid impacts, and what type and extent of damage could occur," said Leviticus Lewis of the Response Operations Department of the Federal Emergency Management Agency (FEMA).

ESA's Hera mission concept, which is under investigation, would be humanity's first mission to becoming a binary asteroid: the Didymos, 780 meters in diameter, is accompanied by a 160-meter-diameter secondary body.

ESA – ScienceOffice.org

How would we handle a terrestrial NEO?

Potential NEO strikes have a lot of international cooperation on asteroid mitigation. It's called Asteroid Impact and Deflection Assessment (AIDA) and will be even more fun than it sounds. Hit an asteroid or one of its moons and study it to see if it has changed course.

How to Dodge an Asteroid

Launching for launch in June 2021, NASA's Double Asteroid Redirection Test (DART) mission will be the first asteroid detour mission to impact a spacecraft. Earlier this month, it was announced that NASA had provided $ 69 million to SpaceX to fire one of its Falcon 9s toward asteroid 65803 Didymos (or "Didymain") and its tiny satellite "Didymoon." A binary asteroid that will pass close to Earth in October 2022 (though not a threat), and it is to be hoped that the DART spacecraft will be ready to hit Didymoon until then, using one of its "kinetic Distraction "described technique easy to change The 500 kg DART bumps into the asteroid moon at about 6 km / s and hopefully changes its orbital speed by 0.4 mm / s, which in turn slightly changes the trajectory of Didymos.

Is "Asteroid Redirection" plausible?

Does DART work? The European Space Agency's Hera follow-up mission, a spacecraft asteroid rendezvous, will tell us if an impactor works. It will examine both the Didymos asteroid and its moon with an "asteroid framing camera", including lasers, a star tracker, a thermal infrared camera, and accelerometers to see if the "asteroid diversion" of DART works or not. It will be located within 200 yards of the Moon and investigate the impact crater left by DART.

Hera scans the surface of Didymoon with his laser altimeter. ESA's Hera missionary concept, which is under study, would be humanity's first mission to becoming a binary asteroid: the Didymos, 780 meters in diameter, will be accompanied by a 160-meter secondary body.

ESA – ScienceOffice.org

However, this will not be a quick result as ESA's Hera mission will not start until October 2023 and Didymos will not reach it until 2026. After that we will hopefully know how asteroids react to whether they have invaded change of course.

Then maybe we could get ready if we get a warning from "the big one".


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