YR4, the "city-killer" asteroid that briefly made headlines last year due to a small but non-zero chance that it may hit the ...

When an asteroid threatens Earth, astronomers use a rating called the Torino scale to communicate the risk. Richard Binzel, ...

The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

NASA has confirmed that asteroid 2024 YR4, a space rock approximately the size of a 15-story building, might collide with the ...

Debris from Comet Encke creates two annual meteor showers, but it might also pose a small risk to Earth. Scientists are ...

Dive into NASA's ATLAS system as interstellar 3I/ATLAS nears Sun on 29 Oct 2025—no Earth hit, but astrometry campaign probes anomalies & ET tech theories. Facts on defense activation ...

What happens if an asteroid the size of a 15-story building crashes into the Moon in 2032? While the chances of the newly discovered asteroid 2024 YR4 hitting the Moon in seven years are slim – there ...

In the 1960s, when the possibility of an asteroid impact alarmed the American public for the first time, MIT students drafted ...

Last week, a handful of watching telescopes captured something crashing into the moon. Then over the weekend, a second object ...