Only three confirmed interstellar objects have ever been identified passing through the solar system, which helps explain why astronomers reacted so quickly when 3I/ATLAS appeared. NASA’s newly ...

At roughly 250,000 kilometers per hour, comet 3I/ATLAS did not merely enter the inner solar system; it tore through it at a speed that made every observation window brief and technically demanding. Th ...

Satellite views and space telescopes allow scientists to see amazing wonders, such as sand seas in the Namib Desert, "spiderweb" formations on Mars, and even distant nebulae. Sometimes, though, a ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

Lead researcher Nathan Roth said the image shows the comet is “bursting with methanol in a way we just don’t usually see.” ...

A 2,000-page monograph series proposes a new conceptual framework connecting quantum physics, gravitation and cosmological evolution.

A new image captured by the Very Large Telescope reveals stars and gas orbiting the "invisible giant" at the heart of our galaxy.

The possibility that a huge space rock — once deemed the riskiest asteroid ever observed — could hit the moon now appears to ...