Astronomers using radio telescope observations to get an inside look at an interstellar comet have gleaned new insights into when and where the celestial object formed. The comet, named 3I/ATLAS, ...

A newly discovered comet, C/2025 R3 (PanSTARRS), is set to pass by Earth this week. The comet will make its closest approach to Earth on April 27, coming within 44 million miles. It may be visible to ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A newly brightening comet is now visible in the predawn sky ...

The Artemis II moon mission may have concluded, but there are still some cosmic wonders on the horizon. For the first time since the prehistoric age, interstellar comet C/2025 R3 (Pan-STARRS) will be ...

Comet MAPS (C/2026 A1) didn't survive its close encounter with the Sun, ruining its chances of brightening up the night skies. Reading time 2 minutes Bad news for skywatchers: A sungrazing comet that ...

Viewing conditions improve this week, thanks to darker skies as the moon wanes following the last quarter phase on April 10 Getty Comet C/2025 R3 (Pan-STARRS) orbits the sun every 170,000 years, ...

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, ...