Interstellar has arguably changed movies more than The Dark Knight, and Project Hail Mary is evidence.

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 19, "this erratic wanderer will be the closest to Earth that it will ever be over the lifetime of the entire universe," ...

Comets are often treated as leftovers, but sometimes the leftovers become the primary focus. That is the case with 3I/ATLAS, only the third known interstellar object seen crossing the solar system, ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

"The reason for 3I’s rapid brightening, which far exceeds the brightening rate of most Oort cloud comets at similar distances, remains unclear." When you purchase through links on our site, we may ...