Living up to its name, Mercury is the fastest planet in the solar system, speeding along at about 29 miles per second and ...

Mercury may be small, but it’s mighty, zipping around the Sun faster than any other planet. And despite being so close to the ...

Recent research indicates Mercury, the solar system's smallest planet, is shrinking due to its cooling interior. As Mercury's ...

A “planetary parade” — in which Mercury, Venus, Jupiter, Saturn, Neptune and Uranus are aligned — began Sunday and will last ...

Since its fiery birth nearly 4.5 billion years ago, Mercury, the smallest planet in our solar system, has been slowly ...

Mercury, the smallest planet in the solar system, has spent billions of years quietly getting even smaller. Since its fiery ...

The planet Mercury could have a layer of diamonds up to 18 kilometers, or 11 miles, thick, tucked below is surface, scientists say.

This fits an emerging picture of Mercury as a planet that has maintained a hot interior, hot enough to preserve a liquid core, a long-lived magnetic field and very recent or current tectonic activity.

If you’re willing to get up in the early morning hours you can see up to six planets before sunrise. Mercury, Venus, Jupiter, ...