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Topic: Comet Siding SpringWritten by Nancy Jones
MAVEN is bringing insight to how the sun stripped Mars of most of its atmosphere, turning a planet once possibly habitable to microbial life into a barren desert world. ![]() This artist concept shows the MAVEN spacecraft and the limb of Mars. (NASA’s Goddard Space Flight Center) «Read the rest of this article» Sections: Technology | No Comments
NASA’s MAVEN orbiter observes Comet Siding Spring create havoc with Mars’ Magnetic Field during flybyWritten by Elizabeth Zubritsky
To protect sensitive equipment aboard MAVEN from possible harm, some instruments were turned off during the flyby; the same was done for other Mars orbiters. But a few instruments, including MAVEN’s magnetometer, remained on, conducting observations from a front-row seat during the comet’s remarkably close flyby. ![]() A close encounter between a comet and Mars in 2014 flooded Mars with an invisible tide of charged particles. The comet’s strong magnetic field temporarily merged with, and overwhelmed, the planet’s weak magnetic field, as shown in this artist’s depiction. NASA’s MAVEN mission monitored the effects. (NASA/Univ. of Colorado) «Read the rest of this article» Sections: Technology | No Comments
NASA discovers Meteoriods from Comet Encke showering planet MercuryWritten by Mark Bailey and Apostolos Christou
The findings are to be presented at the annual Meeting of the Division of Planetary Sciences of the American Astronomical Society at National Harbor, Maryland, this week, by Apostolos Christou at the Armagh Observatory in Northern Ireland, Rosemary Killen at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and Matthew Burger of Morgan State University in Baltimore, working at Goddard. ![]() Mercury appears to undergo a recurring meteoroid shower when its orbit crosses the debris trail left by comet Encke. (Artist’s concept.) (NASA/Goddard) «Read the rest of this article» Sections: Technology | No Comments
NASA working with other space agencies to explore Comets, Asteroids and other Celestial BodiesNASA
Following NASA, European Space Agency (ESA), and Indian Space Research Organisation (ISRO) spacecraft observations of the close flyby of Mars by comet Siding Spring in October, and the successful November landing of ESA’s Philae lander on comet 67P/Churyumov–Gerasimenko, the Japan Aerospace Exploration Agency (JAXA) successfully launched its Hayabusa2 mission on December 3rd to rendezvous with an asteroid, land a small probe plus three mini rovers on its surface, and then return samples to Earth. ![]() Asteroid Explorer “Hayabusa2” is a successor of “Hayabusa” (MUSES-C), which revealed several new technologies and returned to Earth in June 2010. (JAXA and Akihiro Ikeshita) «Read the rest of this article» Sections: Technology | No Comments
NASA Spacecraft analyzes effects of Comet Flyby on Mar’s AtmosphereWritten by Guy Webster
Data from observations carried out by NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) mission, NASA’s Mars Reconnaissance Orbiter (MRO), and a radar instrument on the European Space Agency’s (ESA’s) Mars Express spacecraft have revealed that debris from the comet added a temporary and very strong layer of ions to the ionosphere, the electrically charged layer high above Mars. ![]() This artist’s concept depicts the Imaging Ultraviolet Spectrograph (IUVS) on NASA’s MAVEN spacecraft scanning the upper atmosphere of Mars. IUVS uses limb scans to map the chemical makeup and vertical structure across Mars’ upper atmosphere. (NASA/Univ. of Colorado) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Reconnaissance Orbiter takes image revealing that the Nucleus of Comet Siding Spring is SmallWritten by Guy Webster
The images are the highest-resolution views ever acquired of a comet coming from the Oort Cloud at the fringes of the solar system. ![]() These images were taken of comet C/2013 A1 Siding Spring by NASA’s Mars Reconnaissance Orbiter on Oct. 19, 2014, during the comet’s close flyby of Mars and the spacecraft. (NASA/JPL-Caltech/University of Arizona) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Odyssey Orbiter observes Comet Siding Spring as it passes MarsWritten by Guy Webster
NASA’s Mars Odyssey was out of communications with Earth, as planned, while conducting observations of comet C/2013 A1 Siding Spring on Sunday, October 19th, as the comet flew near Mars. «Read the rest of this article» Sections: Technology | No Comments
NASA Satellites, Telescopes ready for Comet Siding Spring’s flyby of MarsWritten by Tony Phillips
Comet C/2013 A1, also known as comet Siding Spring, will pass within about 87,000 miles (139,500 kilometers) of the Red Planet — less than half the distance between Earth and our moon and less than one-tenth the distance of any known comet flyby of Earth. «Read the rest of this article» Sections: Technology | No Comments
NASA says Comet Siding Spring and Mars’ Atmospheres may Collide in OctoberWritten by Tony Phillips
The nucleus of the comet won’t hit Mars, but there could be a different kind of collision. “We hope to witness two atmospheres colliding,” explains David Brain of the University of Colorado’s Laboratory for Atmospheric and Space Physics (LASP). “This is a once in a lifetime event!” «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Odyssey spacecraft adjusts orbit in lieu of Comet Siding Spring FlybyWritten by Guy Webster
The orbiter fired thrusters for five and a half seconds on Tuesday, August 5th. The maneuver was calculated to place the orbiter behind Mars during the half hour on the flyby date when dust particles released from comet C/2013 A1 Siding Spring are most likely to reach Mars. ![]() NASA’s Mars Odyssey spacecraft passes above Mars’ south pole in this artist’s concept illustration. (NASA/JPL) «Read the rest of this article» Sections: Technology | No Comments
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