Scientists determine if an object is interstellar by computing its trajectory and observing its speed, as demonstrated with the recently discovered 3I/Atlas.

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

Perseid meteors in the night sky via NASA’s All Sky Fireball Network cameras across the US. Credit: Space.com |footage ...

NASA’s Hubble and Webb telescopes observe explosive star formation in the Small Magellanic Cloud's NGC 460 and NGC 456 clusters.