Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary ...

Based on 20 years of observations by NASA’s Hubble Space Telescope, new research sheds light on one of the solar system’s ...

A Chinese spacecraft built to collect specimens from an unexplored asteroid and return them to Earth successfully launched ...

New research suggests that Jupiter, the largest planet in our solar system, was once even bigger—about twice its current size—and had a magnetic field 50 times stronger than it does today. This ...

In its earliest days, Jupiter may have been even more colossal than it is now—twice as large, in fact, with a magnetic field ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' research focused on two of the smaller ones, Amalthea and Thebe. Both are inside ...

Related: 10 incredible volcanoes in our solar system The solar system formed about 4.6 billion years ago from a giant rotating cloud of gas and dust known as the solar nebula. Gravity caused the ...

(bursting) "Solar System: Wandering Worlds," right now on ... orbiting and spinning in the direction of the planet's rotation. But while the inner moons orbit Neptune in the same direction ...

The Hypothesis of Laplace.According to Laplace, the solar system formerly consisted of a very much flattened mass of gas, extending beyond the orbit of Neptune, and rotating like a rigid body.

How our own Solar System came to be ... in direction between those forces is enough to create an axis of rotation: an eddy, transient on cosmological time scales, with a vortex at its center.