An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...

CAPE CANAVERAL, Fla. (AP) — NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar system. Discovered over the summer, the ...

NASA released close-up images on Wednesday of the rare interstellar comet that's making a single pass through the solar system. One of the images shows the comet, also known as 3I/ATLAS, as it ...

A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the skywatching highlights in 2025. Here's how they unfolded.