A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...

Astronomers have detected a rogue planet roughly the size of Saturn wandering alone through the Milky Way. Unlike most ...

Our galaxy, the Milky Way, is home to multiple wonders. There is our biggest star, VY Canis Majoris, the column-like structures known as the Pillars of Creation, and, in the middle of it all, a ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

When I was a kid, the solar system was simple. There were nine planets and they all orbited in more-or-less circles around the sun. This same sun-and-a-handful-of-planets scheme repeated itself again ...

At the farthest reach of the Sun’s influence, NASA’s Voyager 1 spacecraft has stumbled into a region that behaves less like empty space and more like a furnace, where charged particles heat to tens of ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...