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A stripe of red dots shows the risk corridor for a hypothetical asteroid strike, part of an exercise this week held by planetary defense experts in which they analyze data about a fictitious asteroid. Landsat/Copernicus/Google Earth/Dept. of State Geographer hide caption

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Landsat/Copernicus/Google Earth/Dept. of State Geographer

This Week, NASA Is Pretending An Asteroid Is On Its Way To Smack The Earth

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InSight seismometer with protectiive wind cover deployed on Mars. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

NASA's InSight Probe May Have Recorded First Sounds Of Marsquake

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Former Astronaut On Watching For Life-Destroying Objects From Space

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South Korean President Park Geun-hye walks past a NASA logo during a tour at the agency's Goddard Space Flight Center in Greenbelt, Md. Patrick Semansky/AP hide caption

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Patrick Semansky/AP

Do You Love Lying In Bed? Get Paid By NASA To Do It For Space Research

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Scientists Share Results From NASA's Twins Study

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Scientists Have Taken The First Photo Of Something That's Invisible — A Black Hole

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The first-ever image of a black hole was released Wednesday by a consortium of researchers, showing the "black hole at the center of galaxy M87, outlined by emission from hot gas swirling around it under the influence of strong gravity near its event horizon." Event Horizon Telescope collaboration et al hide caption

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Event Horizon Telescope collaboration et al

Japan's Hayabusa2, seen in this illustration, has been probing the asteroid Ryugu since 2018. The spacecraft is collecting samples that will be returned to Earth. JAXA/Akihiro Ikeshita hide caption

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JAXA/Akihiro Ikeshita

Japan (Very Carefully) Drops Plastic Explosives Onto An Asteroid

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India launched a ballistic missile defense interceptor last week — and NASA says it created dangerous debris in orbit. "We have identified 400 pieces of orbital debris from that one event," NASA Administrator Jim Bridenstine said. Handout /Reuters hide caption

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Handout /Reuters

This illustration made available by NASA shows the Kepler space telescope, the planet-hunting spacecraft that launched in 2009. NASA via AP hide caption

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NASA via AP

Young Astronomer Uses Artificial Intelligence To Discover 2 Exoplanets

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Scientist Corey Gray and his mother, Sharon Yellowfly, are pictured at one of the two massive detectors that make up the Laser Interferometer Gravitational-Wave Observatory. One facility, where Gray works, is in Washington state, and the other is in Louisiana. Courtesy of Russell Barber hide caption

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Courtesy of Russell Barber

How A Cosmic Collision Sparked A Native American Translator's Labor Of Love

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Experts believe the target of Wednesday's anti-satellite test was India's Microsat-R, which is shown here launching in January. Arun Sankar/AFP/Getty Images hide caption

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Arun Sankar/AFP/Getty Images

India Claims Successful Test Of Anti-Satellite Weapon

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