Debris from Mercury's heavily cratered surface could have reached Earth, so why haven't we found meteorites from the ...

Despite being covered in impact craters that could potentially send pieces of the planet into space, we have never found a ...

Mercury reaches its point of greatest eastern elongation on Friday (July 4), presenting an excellent opportunity to spot the ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

The new moon occurs on June 25. A day later, Mercury reaches its highest point in the evening sky, and on June 27, the young ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter. But we have 1,000 or so ...

For folks in the United States, July evenings mean 4th of July fireworks. While you're waiting for the show, be sure to watch ...

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

The closest world to the Sun has some extreme surface structures, steep hills and cliffs, which have long been suspected to ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...