We usually think of our Solar System as a calm, well-organized family of planets, but a new study suggests its early days may ...

A rare meteorite found in the Sahara Desert may be evidence of a long-lost "protoplanet" that formed in the early solar ...

NASA’s next big planet hunter is designed to explore regions of the galaxy that almost no one has looked at or studied. The ...

New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

The solar system’s history is steeped in mystery, with suggestions of ancient chaos possibly casting out enormous planets.

The Kepler telescope changed how we saw the sky. It’s just one of the devices we’ve sent out beyond the reach of humans to ...

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

NASA chief Jared Isaacman’s call to restore Pluto’s planetary status has reignited a long-running scientific debate over ...

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 ...

"It’s incredible to think there was once a world this large." The post Scientists Find Chunk of Lost Planet in Desert ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

Instead they circled a pulsar, the dead remains of an exploded star. Clearly nature excels at making planets, even under ...