Latest MESSENGER Stories
NASA said on Thursday that its MESSENGER spacecraft completed its first perihelion passage from orbit around Mercury.
WASHINGTON, June 16, 2011 /PRNewswire-USNewswire/ -- NASA scientists are making new discoveries about the planet Mercury.
The MESSENGER spacecraft successfully completed its first orbit-correction maneuver on June 15 to reset its periapsis altitude â€” the lowest point of MESSENGERâ€™s orbit about Mercury relative to the planetâ€™s surface â€” from 506 kilometers to approximately 200 kilometers.
On Sunday, the MESSENGER spacecraft successfully completed the first of four â€œhot seasonsâ€ expected to occur during its one-year primary mission in orbit about Mercury.
NASA will host a news conference at 1 pm EDT on Thursday, June 16, to reveal new images and science findings from the first spacecraft to orbit Mercury.
Robert Strom - Forty years ago, in 1971, I became a member of the Mariner 10 imaging science team.
Mercury and its environment constitute a complex system that includes interactions among the interplanetary medium, the planetâ€™s magnetic field, its tenuous atmosphere (or exosphere), and its surface.
MESSENGERâ€™s Mercury Laser Altimeter (MLA) in its first 2 months of operation has already built up a grid of ground tracks that span most of Mercuryâ€™s surface north of the equator.
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On May 6th, MESSENGER began its 100th orbit around Mercury.
The Planet Mercury -- in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon as it completes each revolution about the sun, although the visible disk varies in size with respect to its distance from the earth. Because its greatest elongation is 28, it is seen only for a short time after sunset or before sunrise. Since observation of Mercury is...
- Large; stout; burly.
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