From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Oceans hiding within the crusts of distant moons are tantalizing targets for scientists looking for life beyond Earth ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

In theory, leaner NASA oversight, greater use of off‑the‑shelf hardware and narrower science goals can cut costs while ...

The NASA-funded ATLAS survey telescope in Chile found the comet on July 1. The comet was not visible as it raced behind the ...

The Artemis II mission, which could launch as early as February, is expected to send four astronauts on a trip to the moon, ...

Space-based solar power could deliver clean electricity day and night, but launch costs, safety, and scale remain major ...

Katy has a BA in Humanities and Philosophy, with over 20 years of experience in online and print publishing. She was named ...

Unlike YR4, finding earlier observations of 3I/ATLAS to model where it might have come from was easier said than done. During its July 1, 2025 detection, the interstellar object happened to be moving ...

While the comet will remain visible to telescopes for several months, tonight marks the moment it is nearest to Earth, making ...