On 14 February 2026, at the American Association for the Advancement of Science annual meeting in Phoenix, Arizona, Kelly Fast presented data on a persistent gap in planetary defense capabilities.

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 officials warn thousands of undetected “city killer” asteroids may be circling near Earth. With limited deflection tools ready, are we prepared if one suddenly shifts onto a collision course?

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 ...

NASA planetary defense experts report that mid-size near-Earth asteroids could cause regional damage, with detection and deflection remaining limited, according to New York Post and AAAS reports.

Space agencies maintain that global cooperation and sustained investment are vital to planetary defence. While the DART ...

NASA planetary defense experts warn that up to 15,000 undetected asteroids could devastate a major city on Earth.

A 140-foot asteroid is set to sweep past Earth today, and it seems everyone is taking notice. Astronomers have been tracking the space rock, officiall.

NASA has warned that about 15,000 mid-sized “city-killer” asteroids near Earth remain undiscovered, with the potential to cause regional devastation, as scientists say no deflection mission is ready ...

Asteroid 2022 RD2 is a near-Earth object that could become a temporary moon, then later a potential crash risk for the planet later this century. Credit: NASA / JPL-Caltech illustration Scientists ...

Scientists have spotted a small asteroid that may circle Earth as a mini moon before shifting onto a path that could make it a hazard later in the century. NASA has calculated the asteroid’s orbit and ...