Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

A meteorite found in the Sahara is forcing scientists to rethink what kinds of worlds once circled the young sun. The rock, ...

Venus takes about 243 Earth days to complete a single rotation, and it does so in the opposite direction from nearly every ...

The hunt for Planet Nine continues as new discoveries make the Solar System’s biggest mystery even harder to solve. Is there ...

A village in Kent is home to what is thought to be the world's largest scale model of the solar system and beyond, created to ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars ...

As it turns out, the conditions that set Venus and Jupiter up for their conjunctions in the sky are the same that are ...

Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby ...

Jupiter has 79 moons and is known as the 'king of the planets'. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Jupiter is the largest planet in ...

The names of the days often feel so familiar that they pass unnoticed. They appear on calendars, meeting schedules and phone ...