When comet 3I/ATLAS swept past the Sun in late October 2025, it gave astronomers their best chance yet to taste the chemistry ...

ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon (C/2025 A6) may soon make a play for the title ...

Astronomers have made the first-ever measurement of deuterated water in an interstellar object, revealing that comet 3I/ATLAS ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A brightening comet is now becoming easier to see — and this ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

Time to look up stargazers. There's another comet coming our way. A newly discovered comet, comet C/2025 R3 (PanSTARRS), which appears to have been traveling in the solar system since September, is ...

An incoming comet could provide one of the year's most exciting skywatching events, but only for early risers. The comet, named C/2025 R3 (PanSTARRS), is currently brightening in the night sky, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A large comet has exploded as a result of thermal pressure while ...

For the first time, a comet may have been caught flipping its spin. Sometime between April and December 2017, comet 41P/Tuttle-Giacobini-Kresák apparently started twirling in the opposite direction, ...