If a satellite's velocity increases as it approaches a planet during a slingshot maneuver, why does it not decrease by the ...

Long written off in school textbooks as a passive celestial giant marked by a centuries-old storm, Jupiter is emerging through new deep-space telemetry not merely as a planet of extreme physics, but a ...

Eight hundred million years ago, a primitive rock at least 100 to 200 kilometers across broke apart in one of the worst possible locations in the solar system — directly on the edge of a gravitational ...

A new study published this week in The Planetary Science Journal has named the specific asteroid family responsible for a forgotten third chapter in Earth's bombardment history — and the gravitational ...

The subsurface findings could transform how scientists study volcanoes across the solar system — including those on Earth.

NASA’s Juno spacecraft measured heat below Io’s surface for the first time and found temperatures rise sharply just a few feet underground. Io’s surface appears surprisingly smooth and covered in ...

The document, which is allegedly from November 2024, supposedly noted that the Earth would be without gravity for seven ...

We have known for a while that the Milky Way is full of homeless worlds. Rogue planets, free-floating planets—call them what you like—but they are planets formed in orderly systems around ordinary ...

The Solar System may look orderly from a distance. Eight planets orbiting one star, ...

NASA’s Europa Clipper is deep into a five-and-a-half-year cruise toward Jupiter, where it will study a moon that many ...

Jupiter’s best-known feature is not a solid mark on a surface but a vast vortex embedded in moving cloud bands. The Great Red ...

A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.