Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Learn about the new perspective on Earth's reduction of moderately volatile elements, a discovery made possible by meteorites ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Our solar system, a cosmic ballet of planets held together by gravity and inertia, is uniquely structured compared to many ...

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Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

and many systems contain super-Earth planets. Understanding how the habitability of our solar system's inner planets—Mercury, Venus, Earth and Mars—would change had there been a super-Earth ...

Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a ...

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...