Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...

A European-Japanese space mission will reach Mercury in 2026, carrying instruments designed to answer a question that has ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

By tracking tiny stellar wobbles, astronomers have detected planets forming around young stars for the first time.

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

Ever wondered how planetary systems like our own solar system form? Thanks to the European Space Agency's Gaia space ...

Astronomers have repeatedly observed events near a distant star that mirror processes from the early solar system’s ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

This discovery was made by two of NASA’s most celebrated telescopes. This illustration provided by Dan Durda shows the exoplanet Kepler-1625b with a hypothesized moon. On Thursday, Oct. 4, 2018, two ...