Discover which planet is the fastest in the solar system. Learn why Mercury moves at 47 km/s, has the shortest year, and ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

But, in fact, it’s actually really difficult to reach the innermost planet of our solar system—which makes it that much more impressive that the ESA and JAXA’s BepiColombo mission has almost reached ...

MESSENGER began its 2,000th orbit around Mercury earlier this week, on May 22. The spacecraft completed its primary mission on March 17, 2012, and its first extended mission on March 17, 2013. The ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...

The inner planets Mercury and Venus will both be visible in the east-southeast sky before sunrise on Tuesday, Nov. 25.

"It's really exciting to start seeing the link between the planet's surface and the plasma environment." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

NASA has sent the very first spacecraft into an orbit around Mercury, the closest planet on our solar system to the Sun. Now that it is there, NASA’s satellite MESSENGER (MErcury Surface, Space ...

The exhibit is comprised of a recently-restored Atlas missile and a mock Mercury capsule. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Mercury retrograde is an optical illusion that occurs when the planet Mercury appears to move backwards in the night sky.

A spaceman has captured jaw-dropping views of aurora from orbit. NASA astronaut Jonny Kim shared the scene from aboard the ...