The size of the solar system is defined by the volume of space over which the sun’s influence exceeds those of other nearby stars in the Milky Way galaxy.

The James Webb Space Telescope has joined the study of the interstellar invader 3I/ATLAS, uncovering secrets that could ...

NASA’s Hubble Space Telescope has captured the sharpest-ever view of the interstellar comet 3I/ATLAS, revealing clues about ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into Earth's cosmic neighborhood.

Scientists studying asteroids found that two seemingly unrelated types share a strange dusty coating of troilite. By using ...