With a diameter of 88,846 miles at its equator, Jupiter is the biggest planet in our solar system. It’s eleven times larger than Earth, so big in fact that its gravitational forces are thought to be ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Widespread magnetism dating from our solar system’s earliest beginnings some 4.57 billion years ago likely played a major role in creating orbital order out of chaos. But until now, magnetism’s role ...

A newborn planetary system is forming around HOPS-315, a protostar (one that recently formed) that sits some 1,300 light-years away in the constellation Orion the Hunter. This star isn’t in the ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...