Surprise, it's twins.

Ever since a mysterious interstellar object, since dubbed 3I/ATLAS, was first spotted screaming into our solar system this year, famed Harvard astrophysicist Avi Loeb has been raising the possibility ...

NASA has confirmed the detection of a colossal interstellar comet measuring up to 20 kilometers across as it speeds through ...

An out-of-this-world encounter has touched down at the Discovery Cube Orange County. The children’s learning museum in Santa Ana opened its new Solar System Encounter on Saturday, an immersive look at ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS. A remarkable ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

For the first time in human history, we're watching a new solar system come to life. Not in theory, but in real, observable detail. NASA's James Webb Space Telescope (JWST) and its incredible ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...