Billions of years from now, the Sun will become a red giant. And then, it will slowly die. That’s right. It’s the end of the ...

The scientific wonderers at What If place a distant, habitable super-Earth into our own system to see how it would affect our ...

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 ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner ...