Aerojet, a GenCorp (NYSE:GY) company, announced today that NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft has successfully achieved the first-ever orbit ...

On Aug. 3, 2004, NASA launched the MESSENGER spacecraft on a historic first mission to orbit the planet Mercury. The spacecraft's name stands for the MErcury Surface, Space ENvironment, GEochemistry ...

The launch of MESSENGER, a NASA space probe set to conduct the first scientific investigation of Mercury as it orbits the planet, will be launched aboard a Boeing Delta II Heavy expendable launch ...

On April 30, 2015, NASA's MESSENGER mission came to an end when the spacecraft intentionally crashed into the surface of Mercury. MESSENGER was the first spacecraft to orbit Mercury and the second ...

Diamonds aren't the traditional 20th anniversary gift, but we're not going to complain, since these came from a spacecraft that crashed into the surface of Mercury back in 2015. NASA's MESSENGER ...

Before crashing into Mercury's surface, the MESSENGER probe sent a glorious visual archive back to Earth. Here's what the probe taught us about Mercury before it died. Share on Facebook (opens in a ...

NASA’s Mercury-bound Messenger spacecraft dropped into orbit around the tiny, orbitally eccentric planet just a few months ago, and it’s already sent back enough data to notably alter our take on the ...

Mercury, the planet with the fastest orbit around the sun, was named after the fleet-footed messenger to the Roman gods. But NASA's spacecraft to Mercury will be a little less than mercurial. It will ...

The Pleiades (top) and planet Mercury a little more than an hour after sunset yesterday April 26. Credit: Bob King See that little dot down in the trees? That's Mercury. In just a matter of days, it ...

Credit: NASA JPL-Caltech/Space Science Institute and NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington Earth and the Moon show two sides in these parallel ...

Based on my research, which include image composites of two flyby views of Mercury from the MESSENGER spacecraft, I conclude that Mercury has not cooled and shrunken as much as previously thought.