To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Two meteorites discovered in the Sahara Desert could potentially be fragments of Mercury that broke off during a collision in ...

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.

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

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

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

Despite being covered in impact craters that could potentially send pieces of the planet into space, we have never found a piece of Mercury. Until, just maybe, now.

Mercury is a mystery. It’s the smallest planet in our solar system, the closest to the Sun, and one of the most extreme. Its ...

Everything you could want to know about Mercury in our solar system. Voting ends in Greenland election dominated by Trump's control pledge Here's the Average Social Security Benefit at Ages 62, 67 ...