When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it to challenge what we know about cosmic history. Now known as 3I/ATLAS, the ...
Interstellar comet 3I/ATLAS, only the third known object confirmed to have entered the solar system from interstellar space, is throwing new surprises about its journey. The comet 3I/ATLAS has sparked ...