Is it actually possible that a comet from another star system could change color right in front of our eyes and then ...

New full-color images of interstellar comet 3I/ATLAS capture a rare visitor in vivid detail just days before it makes its ...

Astronomers tracking the interstellar comet known as 3I/ATLAS report that the object has brightened markedly and developed a faint green glow as it approaches its closest pass by Earth, sharpening ...