NASA's Jet Propulsion Laboratory reports that the near-Earth asteroid 2021 ER will approach Earth on Friday for a safe yet close flyby. The asteroid is roughly 44 feet wide, which equals the ...

NASA warns that more than 15,000 asteroids capable of destroying cities remain undetected and that Earth has no defense against impact.

NASA estimates that roughly 25,000 near-Earth asteroids measuring at least 140 meters across orbit in our planetary neighborhood, but surveys have so far cataloged only about 40% of them. That gap ...

NASA has found fewer than a third of the near-Earth asteroids large enough to destroy a city, and the agency’s best tool for closing that gap will not reach space until at least 2027. The shortfall ...

Humanity needs to step up its asteroid-hunting game. To date, astronomers have spotted more than 8,000 near-Earth asteroids that are at least 460 feet (140 meters) wide — big enough to wipe out an ...

JWST imaged 2024 YR4 in late March, making it the smallest object the telescope had imaged to date. The data its instruments collected indicate that based on the amount of heat it gives off, 2024 YR4 ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...

NASA says an impact from its DART spacecraft changed the orbit of an asteroid for the first time ever, offering hope for planetary defense.