Mercury takes only 88 Earth days to orbit the sun.

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

That means the miniature probe could reach Earth’s nearest star ... which is nearly the edge of the Solar System. It’s possible that the craft could even be pushed up to an incredible 1,000 ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...

These craters are among the coldest locations in the Solar System, despite Mercury being the closest planet to the Sun. The images also highlight Borealis Planitia, a vast expanse of smooth plains ...

Moons and satellites that primarily orbit other bodies in the solar system, have their own closest points to their parent body. For objects orbiting Earth, that point is called perigee.

With the new agreement, the Peninsula would have its closest solar energy generating system yet. The closest existing renewable energy systems are in Alameda County and San Francisco County.