The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Scientists have shown that Earth’s basic chemistry solidified within just three million years of the Solar System’s formation. Initially, the planet was barren and inhospitable, missing water and ...

Earth’s chemistry was set early, but it was too dry to support life. Only a later collision with Theia likely delivered the water and volatiles that made life possible. Credit: NASA/JPL-Caltech Before ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Summer has come to full stop as meteorological fall is upon us with blessedly cooler temperatures and life-giving rain. The sky has taken on a violet-tinged hue, embroidered with thready gray-white ...

A composite image showing the five dwarf planets recognized by the International Astronomical Union, plus the newly discovered trans-Neptunian object 2017 OF201. Credit: NASA/JPL-Caltech; image of ...

We're working continuously to improve our search results. If you aren't finding what you expect, please use our feedback form to share the search query and expected ...

Earth uncovers an incredible ability to leave the solar system behind. But freedom comes at a cost: darkness, cold, and the end of all life. Join us on a journey through the terrifying yet mesmerizing ...

Smithsonian researchers analyzed fragments of the near-Earth asteroid and discovered water-rich clays that hint at a distant origin Jack Tamisiea A view of the outside of the OSIRIS-REx sample ...

For centuries, humans have gazed into the night sky, wondering what lies beyond the planets we know. Each new discovery in the Solar System reshapes our sense of place in the cosmos. Now, astronomers ...