Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

The solar system could be packed with 1 million alien visitors, space rocks shaken away from our cosmic neighbor Alpha ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...