New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once ...

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in the northern ...

The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are these planets, and how do they travel through space? Uncover the true scale ...

Astronomers have discovered a new exoplanet that may be habitable 35 light-years from Earth. Named L 98-59 f, it joins four ...

The title of the paper hints at the other thing that makes this system so unique: the planets are in perfect resonance with each other, which is to say their orbits are in a sort of harmony. The ...

All the planets in the Solar System are visible in the night sky this week, making a beautiful sight for stargazers. Even the outermost planets — Uranus, and Neptune (plus the dwarf planet Pluto ...

From quasi-moons to asteroids with rings, the Solar System is beaming with weird and exotic objects that tell the story of how it came to be billions of years ago. Arrokoth As an ancient ...

This illustration compares the Trappist-1 system and the three planets in its habitable zone (in green) with our own solar system. NASA/JPL-Caltech The researchers created a solar system computer ...

The A.I. system predicts which of these 10 features would have a stable future if it kept on going, up until the planets orbit around their common host star for about one billion times.

According to Sheppard, since the team’s survey began in 2012, it has netted about 80 percent of all solar system objects discovered beyond 60 AU. But Sheppard and his team aren’t done yet.

A smaller planet more like Earth or Mars could have been pushed to the outer reaches of our solar system (or into deep space), according to a new paper. Scientists think Planet 9 used to be more ...