Scientists have long thought that our solar system's ocean worlds, such as Jupiter's moon Europa and Saturn's moon Enceladus, ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

A new study has strengthened the belief that one of Jupiter's moons might be hiding a vast, salty ocean beneath its icy surface. Callisto is the third-largest moon in the entire solar system.

Comparing that data to estimates about our Solar System's trajectory ... "If you shift continents or interrupt ocean currents, you get climate shifts from that, so I’m very skeptical you ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

Narrator: Serious scientists, like myself, believe our solar system was formed by the collapse of a giant cloud of gas and rock and is held together by the gravitational pull of the Sun.

The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.

Our solar system passed through a vast wave of gas and ... Astronomers have previously discovered large ocean-like waves of stars, gas and dust in the Milky Way that undulate up and down over ...