When the interstellar comet 3I/ATLAS swept through the inner solar system in Dec, it offered Earth a rare glimpse of material ...

On Dec. 20, commander Reid Wiseman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen emerged ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the skywatching highlights in 2025. Here's how they unfolded.

November 2025, the PUNCH satellite captured a dramatic sequence of the comet's tail twisting and reacting to powerful solar activity.

Ursid meteor shower peaks Dec. 21–22 as Earth passes through debris from Comet 8P/Tuttle. Here’s when and where to watch the ...

Tonight is the last chance to see a meteor shower for 2025. The Ursid meteor shower is active from December 13th to December ...

The Ursid meteor shower peaks Sunday night into early Monday morning, and is the last major event on the celestial calendar ...

Avi Loeb says interstellar objects such as 3I/ATLAS could carry time capsules into deep space faster than spacecraft built with 1970s technology ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...