Dear EarthTalk: It seems to me the single biggest potential “environmental” problem we could face—even bigger than global warming or a nuclear war—is a comet or asteroid striking the Earth. Do we ...

Astronomy is riddled with complex jargon that many of us will probably never need to understand. However, you're more likely to read and hear about meteors, meteoroids, meteorites, comets, and ...

Comet 3I/ATLAS, the third known interstellar object passing through our solar system, is sparking global interest due to its potential to advance our understanding of space monitoring. Although the ...

Add Yahoo as a preferred source to see more of our stories on Google. Dark comets accelerate through space but don't have a dusty tail like most comets. Adina Feinstein and NASA’s Earth Observatory ...

Main-belt comets (MBCs) and active asteroids represent a fascinating intersection of cometary and asteroidal physics. These bodies, residing within the main asteroid belt, occasionally exhibit ...

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS. When you purchase through links on our site, we may earn an affiliate ...

Davide Farnocchia hunts down and tracks asteroids, and several years ago he saw something he couldn’t explain. Farnocchia works at NASA’s Center for Near-Earth Object Studies in California. Using ...