Interstellar Comet 3I/ATLAS has captured attention, but is it all hype? Discover the facts about this ancient cosmic traveler as it nears perihelion and what astronomers have uncovered.
A new bright green comet, C/2025 F2 (SWAN), has been discovered by amateur astronomer Michael Mattiazo. Visible now until April 14, share your sightings and photos with us!