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News About Mercury
April 21, 2014
Ancient volcanic explosions shed light on Mercury's origins
Providence RI (SPX) Apr 04, 2014
The surface of Mercury crackled with volcanic explosions for extended periods of the planet's history, according to a new analysis led by researchers at Brown University. The findings are surprising considering Mercury wasn't supposed to have explosive volcanism in the first place, and they could have implications for understanding how Mercury formed. On Earth, volcanic explosions like the one that tore the lid off Mount St. Helens happen because our planet's interior is rich in volatiles - water, ... read more

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Eleventh MESSENGER Planetary Data System Release Is the Largest Yet
NASA requires that all of its planetary missions archive their data in the PDS, which provides well-documented, peer-reviewed data to the research community. The latest release of MESSENGER measurem ... more
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MESSENGER Surpasses 200,000 Orbital Images of Mercury
MESSENGER has now returned more than 200,000 images acquired from orbit about Mercury. The 1996 proposal for the mission promised a return of at least 1,000 images says Robert Gold, MESSENGER's Scie ... more
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MESSENGER Celebrates 1,000 Earth Days in Orbit around Mercury
Later today, the MESSENGER spacecraft will have completed 1,000 Earth days of flight operations in orbit around Mercury. "This milestone is a testament to the outstanding work of those who designed, ... more
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MESSENGER Detects Comets ISON and Encke, Prepares For Closer Encounters
NASA's Mercury-orbiting MESSENGER spacecraft has captured images of two comets - 2P/Encke and C/2012 S1 (ISON) - setting the stage for observations later this month when both comets will be substa ... more
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MESSENGER to Capture Images of Earth and Moon During Search for Satellites of Mercury
NASA's Mercury-orbiting MESSENGER spacecraft will capture images of Earth on July 19 and 20. The images will be taken at 7:49 a.m., 8:38 a.m. and 9:41 a.m. EDT on both days. Nearly half of the ... more
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New insights concerning the early bombardment history on Mercury
The surface of Mercury is rather different from those of well-known rocky bodies like the Moon and Mars. Early images from the Mariner 10 spacecraft unveiled a planet covered by smooth plains and cr ... more
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NASA and Italian Space Agency Sign Agreement on Exploration of Mercury
At a meeting in Rome Thursday, NASA Administrator Charles Bolden and Italian Space Agency (ASI) President Enrico Saggese signed a Memorandum of Understanding for cooperation on the European Space Ag ... more
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IAU Approves New Names for Ten Major Fault Scarps on Mercury
The International Astronomical Union (IAU) recently approved a proposal from the MESSENGER Science Team to assign names to 10 rupes, the long cliff-like escarpments that formed over major faults alo ... more
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NASA Watches Solar Magnetic Field As MESSENGER Clocks Up 2000 Orbits
MESSENGER began its 2,000th orbit around Mercury earlier this week, on May 22. The spacecraft completed its primary mission on March 17, 2012, and its first extended mission on March 17, 2013. The t ... more
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A meteorite mystery from Mercury?
Early in 2012, someone in Southern Morocco picked up 35 greenish stones, including the one shown above. Purchased by a dealer in Erfoud, Morocco, it was then resold to Stefan Ralew, a meteorite coll ... more
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MESSENGER Completes Its First Extended Mission at Mercury
On March 17, 2013, MESSENGER successfully completed its year-long first extended mission in orbit about Mercury, building on the groundbreaking scientific results from its earlier primary mission. ... more
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The mercury rises for BepiColombo
The engineering model of the BepiColombo Mercury Transfer Module has completed a 12-day Sun-simulation test inside the Large Space Simulator at ESA's test centre in the Netherlands, where it receive ... more
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Planetary Data System Releases MESSENGER Data from Third Mercury Solar Day
NASA's Planetary Data System released a new data set collected during MESSENGER's thirteenth through eighteenth month in orbit around Mercury. With this release, images and measurements are now avai ... more
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Mercury may have harbored an ancient magma ocean
By analyzing Mercury's rocky surface, scientists have been able to partially reconstruct the planet's history over billions of years. Now, drawing upon the chemical composition of rock features on t ... more
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BepiColombo Mercury Planetary Orbiter Proto-Flight Mechanical and Propulsion Bus undergoes bake-out
The BepiColombo Mercury Planetary Orbiter Mechanical and Propulsion Bus Proto-Flight Model (the structure with integrated heat pipes and chemical propulsion subsystem) has been baked out in the Phen ... more
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Mercury's crust likely made of magnesium-rich basalt
With both x-ray and gamma-ray spectrometers, the MErcury Surface, Space ENvironment, GEochemistry and Ranging probe (MESSENGER), which entered orbit around Mercury in 2011, is well equipped for carr ... more
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    BepiColombo Mercury Transfer Module Mass Properties Measurement
    The mass properties of the BepiColombo Mercury Transfer Module Structural and Thermal Model have been measured. The transfer module's primary task is to provide solar-electric propulsion during the ... more
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    Altimeter Built at Goddard Helped Identify Ice on Mercury
    A Goddard-built instrument on NASA's MESSENGER mission provided one of three new lines of evidence that water ice exists near the north pole of Mercury. Most of the ice is covered by a thin layer of ... more
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    Spacecraft Finds New Evidence for Water Ice on Mercury
    New observations by the MESSENGER spacecraft provide compelling support for the long-held hypothesis that Mercury harbors abundant water ice and other frozen volatile materials in its permanently sh ... more
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    Large ice deposits found on planet nearest the sun
    Scientists Thursday announced new evidence that Mercury, the planet orbiting nearest the Sun, hosts massive caches of ice and revealed new information on how water reached our solar system's inner planets. ... more
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    MESSENGER Finds Unusual Groups of Ridges and Troughs on Mercury
    MESSENGER has discovered assemblages of tectonic landforms unlike any previously found on Mercury or elsewhere in the Solar System. The surface of Mercury is covered with deformational landfor ... more
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    High-Frequency Flux Transfer Events Detected Near Mercury
    The physical process that creates connections between the magnetic fields emanating from the Sun and a planet - a process known as magnetic reconnection - creates a portal through which solar plasma ... more
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    MESSENGER Data from Second Full Mercury Solar Day in Orbit Released by Planetary Data System
    MESSENGER Data from Second Full Mercury Solar Day in Orbit Released by Planetary Data System Late last week, the Planetary Data System (PDS) released data collected during MESSENGER's seventh ... more
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    The shock of separation
    The BepiColombo mission to Mercury has undergone a series of shock tests at ESA's test facilities to replicate conditions it will experience during its intense ride into space. This video shows test ... more
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