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‘Meteoric Smoke’: Comet Siding Spring Could Alter Mars Chemistry Permanently

November 28, 2014

Feeling lucky? Events such as the Comet Siding Spring approach by Mars in October only happen about once…
Mars Spacecraft Reveal Comet Flyby Effects on Martian Atmosphere

November 10, 2014

Two NASA and one European spacecraft that obtained the first up-close observations of a comet flyby of Mars…
Mars Orbiter’s Spectrometer Shows Oort Comet’s Coma

October 27, 2014

The Compact Imaging Spectrometer for Mars (CRISM) observed comet C/2013 A1 Siding Spring as the comet sped close…
Comet Siding Spring Was Bleeding Hydrogen As It Sped By Mars

October 27, 2014

As Comet Siding Spring passed close by Mars on Sunday (Oct. 19), NASA’s newest Mars spacecraft took a…
Close Encounters: Comet Siding Spring Seen Next to Mars

October 24, 2014

NASA’s Hubble Space Telescope has produced a unique composite image of comet Siding Spring as it made its…
Space Image: Siding Spring Grazes Mars

October 23, 2014

This excellent view of Mars seen together with Comet C/2013 A1 Siding Spring was captured by Scott Ferguson,…
MAVEN Studies Passing Comet and Its Effects

October 22, 2014

NASA’s newest orbiter at Mars, MAVEN, took precautions to avoid harm from a dust-spewing comet that flew near…
Mars Orbiter Image Shows Comet Nucleus is Small

October 21, 2014

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter captured views of comet C/2013…
Mars Reconnaissance Orbiter Studies Comet Flyby

October 20, 2014

NASA’s Mars Reconnaissance Orbiter, which has sent home more data about Mars than all other missions combined, is…
Mars Odyssey Orbiter Watches Comet Fly Near

October 20, 2014

The longest-lived robot ever sent to Mars came through its latest challenge in good health, reporting home on…
All Three NASA Mars Orbiters Healthy After Comet Flyby

October 20, 2014

All three NASA orbiters around Mars confirmed their healthy status Sunday after each took shelter behind Mars during…
NASA Prepares its Science Fleet for Oct. 19 Mars Comet Encounter

October 10, 2014

NASA’s extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image…
Comet Siding Spring: Close Call for Mars, Wake Up Call for Earth?

October 9, 2014

It was 20 years ago this past July when images of Jupiter being pummeled by a comet caught…
Caterpillar Comet Poses for Pictures En Route to Mars

September 1, 2014

Now that’s pure gorgeous. As Comet C/2013 A1 Siding Spring sidles towards its October 19th encounter with Mars, it’s passing a trio of…
Odyssey Orbiter Completes Maneuver to Prepare for Comet Flyby

August 7, 2014

NASA’s Mars Odyssey spacecraft has successfully adjusted the timing of its orbit around Mars as a defensive precaution…
NASA’s Mars Spacecraft Maneuvers to Prepare for Close Comet Flyby

July 28, 2014

NASA is taking steps to protect its Mars orbiters, while preserving opportunities to gather valuable scientific data, as…
NASA’s Swift Satellite Tallies Water Production of Mars-bound Comet

June 20, 2014

In late May, NASA’s Swift satellite imaged comet Siding Spring, which will brush astonishingly close to Mars later…
Hubble Space Telescope Spots Mars-Bound Comet Sprout Multiple Jets

March 28, 2014

NASA released Thursday an image of a comet that, on Oct. 19, will pass within 84,000 miles of…
NASA Preparing for 2014 Comet Watch at Mars

January 29, 2014

This spring, NASA will be paying cautious attention to a comet that could put on a barnstorming show…
Space Science Stories to Watch in 2014

January 2, 2014

There’s an old Chinese proverb that says, “May you live in interesting times,” and 2013 certainly fit the bill…
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