NASA’s MESSENGER spacecraft is in the final days of an unprecedented and unexpectedly long-lived, close-up study of the innermost planet of the solar system, with a crashing finale expected in two weeks.
The jostling of the giant planets Jupiter and Saturn in the solar system’s early days may have delivered a Mercury-type building block to baby Earth, providing the planet with the chemistry to heat its convecting, liquid metal core to this day
As MESSENGER heads into the last few weeks of its mission, it continues to reveal more information about unusual features on Mercury.
Engineers have found a way to buy some time for the MESSENGER spacecraft, which was due to end its four-year mission in March with a suicidal plunge.
The MESSENGER mission is approaching the end of its operational life, but before it dies, you can help NASA name 5 of Mercury's craters.
The first-ever photos of water ice near Mercury's north pole have come down to Earth, and they have quite a story to tell.
Last week's lunar eclipse wasn't just a show for Earthlings, NASA's MESSENGER mission was also watching from 66 million miles away. Continue reading →
Even though Mercury is one of the brightest objects in the sky, very few observers have ever seen the planet in the night sky. That's because it never strays very far from the sun, and is usually lost in its glare.
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