Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

A January 2026 Earth–Sun alignment allows measurements of the opposition surge from interstellar object 3I/ATLAS using ...

First experimental observation of matter-wave diffraction in a short-lived electronpositron atom using a graphene-based ...

James Webb Space Telescope observations suggest little red dots are early supermassive black holes, providing insights into cosmic evolution within the first billion years of the universe.

The interstellar object 3I/ATLAS was discovered on July 1, 2025. There is currently no evidence to suggest that it is anything other than a natural astrophysical object. However, given the small ...

Earth observations are essential to understanding Earth systems and addressing global challenges. With associated data, repositories, and products, they drive innovation, support U.S. economic and ...