For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

A new model that incorporates data gathered by the JWST could help scientists understand the composition and mass of objects ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

The Kuiper Belt is a region in space beyond the orbit of Neptune that's home to Pluto and most of the known dwarf planets, as well as some comets that are thought to be relics of the solar system ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...

The heliosphere, a cosmic bubble formed by the Sun, protects our solar system from interstellar threats and influences life's ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

"Our hope with this kind of research is to understand our own solar system ... surface of Charon, Pluto's largest moon. Balmer hopes to use Webb to observe more four-planet systems, but added ...