Tag Archives: MAVEN

Four NASA spacecraft tackle dust-storm science

One of the thickest dust storms ever observed on Mars has been spreading for the past week and a half. The storm has caused NASA’s Opportunity rover to suspend science operations, but also offers a window for four other spacecraft … Continue reading

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Exploring planetary plasma environments by laptop

A new database of plasma simulations, combined with observational data and powerful visualisation tools, is providing planetary scientists with an unprecedented way to explore some of the Solar System’s most interesting plasma environments. This digital space exploration story starts with … Continue reading

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MAVEN observations on dust storms

The Opportunity rover has proven hardier than expected by operating for nearly 15 years, despite being designed for a 90-day mission. The rover regularly deals with intense dust storms at the surface of the Red Planet and occasionally has to … Continue reading

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MAVEN: Solar storms speed oxygen loss from Mars atmosphere

In September 2017, a series of moderate to extreme flares jetted outward from the Sun’s surface. Among them was a monster X8.2 class flare that occurred on 10 September and was one of the largest flares of the current, but … Continue reading

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MAVEN: Solar storms speed hydrogen loss from Mars atmosphere

Newly published MAVEN results indicate that atmospheric escape of hydrogen during a strong solar storm that impacted Mars in September 2017 was comparable to the seasonal escape of hydrogen over a full Martian year… [More at link]

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MAVEN: Deep-dip campaign #9 completed

MAVEN has successfully completed the 9th deep dip campaign of the mission. Two walk-out maneuvers were performed to raise the periapsis (closest approach to Mars) of the spacecraft by 33 km: ● The first maneuver was performed on May 1. … Continue reading

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MAVEN: Deep-dip campaign #9 begins

MAVEN has begun its ninth deep dip campaign by performing two entry maneuvers to place the spacecraft into a corridor where Mars’ atmospheric density is between 2.0 – 3.5 kg/km³. The two deep dip entry maneuvers consisted of a 4.5 … Continue reading

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MAVEN webinar: Do habitable worlds require magnetic fields?

[The MAVEN mission is holding a public webinar on April 18, 2018, at 7 p.m. Eastern; 4 p.m. Pacific.] What does it take for a planet to be hospitable for life? Join MAVEN Co-Investigator Dr. Dave Brain of the Laboratory … Continue reading

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MAVEN: Meteoric metal chemistry in Mars’ atmosphere

When dust particles enter the Mars’ atmosphere, collisions with air molecules cause heating and evaporation, and the continuous injection of metal atoms and ions into Mars’ atmosphere. The MAVEN Imaging Ultraviolet Spectrograph, or IUVS, instrument has detected a layer of … Continue reading

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How the solar wind interacts with Mars

Mars, without a strong internal dipole magnetic field, is a place where the supersonic solar wind directly contacts the planet’s upper atmosphere. Using a large set of data from the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission, [a paper published … Continue reading

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