Explore facts about our solar system's fastest planet ... Only two spacecraft, both robotic and launched by NASA, have visited Mercury so far, making it the least explored terrestrial planet. Mariner ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Explore facts about our solar system's fastest planet ... Only two spacecraft, both robotic and launched by NASA, have visited Mercury so far, making it the least explored terrestrial planet. Mariner ...

Using data from NASA's MESSENGER spacecraft, scientists have determined that a 10-mile-thick diamond mantle may lie beneath ...

Only two missions have reached Mercury before BepiColombo: NASA’s Mariner 10 flybys in the 1970s and MESSENGER, which orbited the small world from 2011 to 2015. Mariner 10 showed us that Mercury ...

ForbesRevealed: NASA's 'Night Mission' To Mercury, The Only Inner Planet We've Yet To Land OnBy Jamie Carter NASA’s Mariner 10 probe imaged Mercury from 1974-75 while NASA’s MESSENGER mission ...

Mercury, the planet closest to the sun, has a 10-mile-thick mantle of pure diamond, according to NASA. The report, derived ...

Mercury ' s inner core is solid and about the same size as Earth ' s inner core, a new study using observations from NASA's MESSENGER mission has indicated. Mercury is the smallest planet in our ...

As part of Project Mercury, NASA prepared to send a chimpanzee ... Is Jeff Bezos' Blue Origin the Future of Space Exploration? (01:11) 10 Fun Facts About Bioluminescence (02:38) A Map of Migrating ...

On Jan. 9, 1959, NASA selected the McDonnell Aircraft Corporation to develop the Mercury spacecraft, which would later carry the first American astronauts into space, Alan Shepard and Virgil “Gus” ...