Scientists have identified three Earth-sized planets orbiting two stars in the TOI-2267 system. Remarkably, planets transit ...

Southwest Research Institute scientists propose a new model for the formation of compact exoplanetary systems that contain multiple rocky planets in tight orbits around their star. In this model, ...

An international team of astronomers has identified a rare, potentially habitable super-Earth just 19.5 light-years from ...

The quiet fear of losing your home is usually a human story, but in the sky, entire worlds may face something similar. As ...

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 ...

Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...

As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star, or even out of the system altogether. Smaller ...

EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

While Earth is currently the only planet known to support life, astronomers look for certain factors that hint when a newly discovered exoplanet, or planet outside of our solar system, could be ...