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.

Mercury is also the smallest planet in the solar system, measuring just 3,032 miles wide at its equator. That makes it only slightly larger than Earth’s moon.

Pieces of Mercury may have been found on Earth, potentially allowing scientists to study the Solar System's innermost planet.

Mercury, the smallest planet in our solar system and the one closest to the Sun, has long baffled scientists with its twisted ...

With a total volume little more than the Moon, it is the smallest planet in the Solar System and is situated the closest to the Sun. Mercury has no atmosphere to retain heat, meaning that the ...

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

Every picture of the solar system shows Venus as our closest neighbor. Sure, it comes closer to Earth than any planet, but on average Mercury is closer.

Mercury turns out to be similar to the Moon at 0.119, while Venus’ albedo is by far the highest of all planetary bodies in the Solar System at 0.90. So not only does Mercury receive four times ...

Mercury, the smallest planet in the solar system, will be difficult to see with the eye, but it's possible if dark sky conditions are right. An illustration of the night sky on Dec. 28 showing the ...

It also has the shortest orbit of any planet in the Solar System; each year lasts just 88 Earth-days. The Mercury we see today may be nothing more than the kernel of the planet that was once there ...