A comet from another star system is doing something astronomers did not expect. As interstellar comet 3I/ATLAS swept through ...

On one hand, it's nothing short of magical; after all, with a small device that fits in the palm of my hand, I can call a ...

On February 24, 2026, engineers at NASA’s Jet Propulsion Laboratory fed liquid lithium into a prototype plasma thruster, ...

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), 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 ...

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 ...

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, ...

Though C/2026 A1 (MAPS) didn't survive, comet C/2025 R3 (PanSTARRS) is moving toward peak brightness and could become visible later this month Javier Zayas Photography/Getty A sungrazing comet, C/2026 ...