Tag Archives: IUVS

MAVEN: Large solar storm sparks global aurora, doubles radiation levels at surface

An unexpectedly strong blast from the Sun hit Mars this month, observed by NASA missions in orbit and on the surface. “NASA’s distributed set of science missions is in the right place to detect activity on the Sun and examine … Continue reading

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MAVEN: Ups & downs of water escape from Mars

After investigating the upper atmosphere of the Red Planet for a full Martian year, MAVEN has determined that escaping water does not always go gently into space. Sophisticated measurements made by a suite of instruments on the MAVEN spacecraft revealed … Continue reading

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MAVEN: New view of Mars in ultraviolet

New global images of Mars from the MAVEN mission show the ultraviolet glow from the Martian atmosphere in unprecedented detail, revealing dynamic, previously invisible behavior. They include the first images of “nightglow” that can be used to show how winds … Continue reading

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MAVEN completes one Mars year at Mars

Today [October 3], MAVEN has completed one Mars year of science observations. One Mars year is just under two Earth years. MAVEN launched on Nov. 18, 2013, and went into orbit around Mars on Sept. 21, 2014. During its time … Continue reading

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MAVEN: Mapping Mars’ upper atmosphere

High above the thin ‪Martian‬ skies, the ‪MAVEN‬ spacecraft is carrying out a mission: determine how Mars lost its early atmosphere, and with it, its water. MAVEN is currently executing the 9th stellar occultation campaign of the mission. These campaigns … Continue reading

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MAVEN observes Phobos in ultraviolet

NASA scientists are closer to solving the mystery of how Mars’ moon Phobos formed. In late November and early December 2015, the MAVEN mission made a series of close approaches to the Martian moon Phobos, collecting data from within 300 … Continue reading

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MAVEN measures speed & rate of Mars atmosphere loss by solar wind stripping

The MAVEN mission has identified the process that appears to have played a key role in the transition of the Martian climate from an early, warm and wet environment that might have supported surface life to the cold, arid planet … Continue reading

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MAVEN: Mapping atmosphere by watching stars set

High above the thin Martian skies, NASA’s MAVEN spacecraft is carrying out a mission: determine how Mars lost its early atmosphere, and with it, its water. While previous Mars orbiters have peered down at the planet’s surface, MAVEN is spending … Continue reading

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MAVEN: 3rd deep-dip campaign successful

To complete the third deep-dip of the mission, the MAVEN spacecraft executed a maneuver with a ∆V (change in velocity) of 3.9 m/sec. The final “walk out” maneuver resulted in a periapsis of 145 km above the surface of Mars, … Continue reading

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MAVEN: ‘Walk-out’ from deep-dip #3

After a very successful third deep-dip into the well-mixed portion of Mars’ atmosphere, the MAVEN spacecraft will be commanded to “walk-out” of the current atmospheric density corridor on its way to resuming normal science operations. Raising the periapsis from ~120 … Continue reading

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