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Mercury probe fly-by maps mysterious inner planet Washington (AFP) Nov 6, 2009 
The US space probe Messenger's third and final fly-by of the planet Mercury in September revealed an almost complete view of the solar system's smallest planet, leaving only the polar regions to be surveyed, NASA said. Flying at a low altitude, the Messenger (MErcury Surface, Space ENvironment, GEochemistry and Ranging) probe's cameras have now mapped some 98 percent of Mercury's surface ... read moreHidden Territory On Mercury Revealed 
Huntsville AL (SPX) Nov 04, 2009The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like tail. "The new images remind us that Mercury continues to hold surprises," says Sean Solomon, principal investigator for the mission and director of the Department of Terrestrial ... more
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Mercury Rising
MOffett Field CA (SPX) Nov 05, 2009A NASA spacecraft's third and final flyby of Mercury gives scientists, for the first time, an almost complete view of the planet's surface and provides new scientific findings about this relatively unknown world. The Mercury Surface, Space Environment, Geochemistry and Ranging spacecraft, known as MESSENGER, flew by Mercury on Sept. 29. The probe completed a critical gravity assist to ... more MESSENGER Gains Critical Gravity Assist For Mercury Orbital Observations 
Baltimore MD (SPX) Oct 02, 2009MESSENGER successfully flew by Mercury yesterday, gaining a critical gravity assist that will enable it to enter orbit about Mercury in 2011 and capturing images of five percent of the planet never before seen. With more than 90 percent of the planet's surface already imaged, MESSENGER's science team had drafted an ambitious observation campaign designed to tease out additional details ... more MESSENGER Gains Critical Gravity Assist For Mercury Orbital Observations 
by Staff WritersLaurel MD (SPX) Oct 01, 2009 MESSENGER successfully flew by Mercury yesterday, gaining a critical gravity assist that will enable it to enter orbit about Mercury in 2011 and capturing images of five percent of the planet never before seen. With more than 90 percent of the planet's surface already imaged, MESSENGER's science team had drafted an ambitious observation campaign designed to ... more MESSENGER's Neutron Spectrometer Zeros In On Mercury's Crust 
Tucson AZ (SPX) Sep 29, 2009"You bet, I'm really excited about this flyby," said William C. Feldman, a Senior Scientist at the Tucson-based Planetary Science Institute and Cognizant Co-Investigator for the Neutron Spectrometer flying aboard the MESSENGER spacecraft. MESSENGER will make its third and final pass around Mercury before returning in March 2011 to go into orbit around the solar system's innermost planet. ... more |
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An Active Mercury
Huntsville AL (SPX) May 01, 2009A NASA spacecraft gliding over the surface of Mercury has revealed that the planet's atmosphere, magnetosphere, and its geological past display greater levels of activity than scientists first suspected. The probe also discovered a large impact basin named "Rembrandt" measuring about 430 miles in diameter - equal to the distance between Washington and Boston. These new findings and more ar ... more Mercury flyby unveiled active inner planet: studies 
Washington (AFP) April 30, 2009The US space probe MESSENGER's second fly-by of the planet Mercury in October 2008 revealed the solar system's smallest planet to be far more active than previously thought, four studies said Thursday. The MESSENGER (MErcury Surface, Space ENvironment, GEochemistry and Ranging) probe's cameras took more than 1,200 images of the surface, including details of a mammoth well-preserved 692-kilom ... more Messenger Approaches Three Billion Miles Enters Fourth Solar Conjunction 
Laurel MD (SPX) Dec 27, 2008On December 26, the Messenger spacecraft will have traveled three billion miles since its launch, marking somewhat more than 60 percent of the probe's journey toward its destination to be inserted into orbit about Mercury. "That Messenger's odometer reading has reached another major milestone reminds us of the long and complex route that our spacecraft must follow," offers Principal Invest ... more MESSENGER Poised For Third Mercury Encounter
Laurel MD (SPX) Dec 11, 2008MESSENGER completed the second part of a two-part deep-space maneuver today, providing the remaining 10% velocity change needed to place the probe on course to fly by Mercury for the third time in September 2009. Unlike most maneuvers, this one was conducted in a so-called "open loop," explained MESSENGER Project Manager Peter Bedini. "In closed-loop maneuvers, the accelerometers are ... more |
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