Tag Archives: MEX

Mars Express guidance update successful

A tired but very happy Mars Express flight control team pulled shift through the night between 16 and 17 April, overseeing the successful reboot and recovery of ESA’s nearly 15-year-old Red Planet explorer following the installation of significant updates to … Continue reading

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Mars Express: Radar echoes from Meridiani Planum

Searching for signs of ice on Mars is complex. To explore whether ice lurks beneath the surface of the Red Planet, ESA’s Mars Express uses its radar to probe the interior. It sends low-frequency radio pulses at Mars and records … Continue reading

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HRSC: Mars impact crater or supervolcano?

These images from [the High Resolution Stereo Camera on] ESA’s Mars Express show a crater named Ismenia Patera on the Red Planet. Its origin remains uncertain: did a meteorite smash into the surface or could it be the remnants of … Continue reading

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Mars Express: Aging gyros force update for guidance software

Every so often, your smartphone or tablet receives new software to improve its functionality and extend its life. Now, ESA’s Mars Express is getting a fresh install, delivered across over 150 million km of space. With nearly 15 years in … Continue reading

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Mars Express views both moons against Saturn’s rings

New images and video from ESA’s Mars Express show Phobos and Deimos drifting in front of Saturn and background stars, revealing more about the positioning and surfaces of the Red Planet’s mysterious moons. Mars’ two small moons are intriguing objects. … Continue reading

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Mars Express: Leaky atmosphere linked to lightweight planet

The Red Planet’s low gravity and lack of magnetic field makes its outermost atmosphere an easy target to be swept away by the solar wind, but new evidence from ESA’s Mars Express spacecraft shows that the Sun’s radiation may play … Continue reading

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HRSC: Crater named for Gerhard Neukum, Mars Express founder

A fascinating martian crater has been chosen to honour the German physicist and planetary scientist, Gerhard Neukum, one of the founders of ESA’s Mars Express mission. The International Astronomical Union named the 102 km-wide crater in the Noachis Terra region … Continue reading

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HRSC: Mars upside down

Which way is up in space? Planets are usually shown with the north pole at the top and the south pole at the bottom. In this remarkable image taken by ESA’s Mars Express, the Red Planet is seen with north … Continue reading

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Mars atmosphere well protected from solar wind

Despite the absence of a global Earth-like magnetic dipole, the Martian atmosphere is well protected from the effects of the solar wind on ion escape from the planet. New research shows this using measurements from the Swedish particle instrument ASPERA-3 … Continue reading

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HRSC: Fracture swarms on Mars

These striking features on Mars were caused by the planet’s crust stretching apart in response to ancient volcanic activity. The fractures in the Sirenum Fossae region in the southern hemisphere were imaged by ESA’s Mars Express in March. They extend … Continue reading

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