Comets

When 3I/ATLAS is closest to the Earth on Dec. 19, all the features that we are looking for will be easier to detect with our telescopes.

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

NASA imaged Comet C/2025 R2 (SWAN) every four minutes for nearly 40 days, marking the longest any comet has been tracked with such frequency.

"These images are not just pretty."

"This is a snapshot of where we are very early in the scientific process."

NASA has pointed its fleet of spacecraft at comet 3I/ATLAS to collect new footage of the interstellar invader. The agency has also said "all evidence points to it being a comet."

This is great news for planetary defense.

This image captures Comet Lemmon in dramatic fashion, its bright coma and faint tail arcing across the starfield.

While media outlets have reported that curious interstellar comet 3I/ATLAS has changed color, the scientists behind a recent study say that isn't actually the case.

China's Tianwen 1 spacecraft has imaged the interstellar comet 3I/ATLAS from Mars orbit, contributing to global efforts to study the rare visitor from beyond the solar system.