Witness the spectacular and destructive consequences of a collision between the solar system's two largest planets.

In a memorable image from the 1977 film “Star Wars,” the young hero Luke Skywalker gazes at two suns setting above the horizon on his desert planet Tatooine. Astronomers since then indeed have ...

But then scientists at the International Astronomical Union decided Pluto didn’t quite make the cut, it lacked the ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

Solar Orbiter just delivered its most jaw-dropping image yet—an enormous, detailed snapshot of the Sun's blazing outer ...

Once you remember that the sun also orbits the solar system's common center of mass, it all makes sense. Our sun is wobbling, ...

A recent discovery of a unique exoplanet continues to challenge our understanding of solar system dynamics as a recent study ...

Solar Orbiter began routine science operations in 2021 and has since looped ever closer to the Sun, stealing bits of speed ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

"These early images of Donaldjohanson are again showing the tremendous capabilities of the Lucy spacecraft as an engine of ...