The planet Neptune, as seen by NASA’s Voyager 2 probe during a flyby in August of 1989. In astronomy, 180 years is a very long time—maybe not for the goings-on in the universe but certainly for our ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new exoplanet ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Astronomers have identified a new interstellar visitor, 3I/ATLAS, which entered the solar system on July 2, 2025. This ...