Many of these celestial orbs are as remarkable as Jupiter itself. The largest moon in the solar system, Ganymede is also the only moon known to have its own magnetic field. Volcanoes rage on Io's ...

Some are in tightly bunched orbits, much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that race on insanely hot orbits close to their suns.

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

All the other planets in the solar system can fit inside Jupiter. The Solar System is ancient. To put it into perspective, if the age of the Solar System were a year, humans would appear on Earth ...

A Milky Way-surveying spacecraft found a planet 12 times more massive than Jupiter, along with a brown ... a world well outside our solar system, Gaia-4b. The brown dwarf, not quite a planet ...

Now every other world in our solar system will be visible among the stars ... Even higher up, almost directly overhead, will be Jupiter, sparkling at about one-tenth the brightness of Venus.

The unique alignment, set to conclude on Friday, occurs when the planets in our solar system, which are orbiting the sun, line up from the Earth’s perspective. While Mars, Jupiter and Saturn ...

There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The eight planets travel around the Sun at ...