Using a new technique that partly relies on artificial intelligence, researchers spotted potentially more than 10,000 new ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place before our solar system existed.

In a groundbreaking discovery, astronomers have confirmed the approach of a “wandering planet” into our solar system. This celestial event has sparked a flurry of scientific interest and speculation.

Estimating ages of specific events is one of the most difficult problems in astrophysics. While we have a precise (and probably accurate) age for the solar system, we do not have precise ages for each ...