Volcanoes on Mars could still be active, says new study


Most volcanic activity took place on Mars between three and four billion years ago, according to a press release, with smaller eruptions in isolated locations continuing as recently as three million years ago – but until now there was no evidence the red planet could still be volcanically active.
By analyzing data from satellites orbiting Mars, researchers discovered a previously unknown volcanic deposit about 13 kilometres wide and surrounding a 32-kilometre-long volcanic fissure.

“This may be the youngest volcanic deposit yet documented on Mars,” said lead study author David Horvath, in the release. “If we were to compress Mars’ geologic history into a single day, this would have occurred in the very last second.”
“All these data seem to be telling the same story,” said study co-author Jeff Andrews-Hanna. “Mars isn’t dead.” 

“The young age of this deposit absolutely raises the possibility that there could still be volcanic activity on Mars,” Horvath said, adding that a deposit like the one discovered “could have provided favorable conditions for microbial life fairly recently and raises the possibility of extant life in this region.” Source

The majority of volcanic activity in the Elysium Planitia region and elsewhere on Mars consists of lava flowing across the surface, similar to recent eruptions in Iceland. The site of the eruption is 1,600 kilometres from NASA’s InSight lander which has been studying seismic activity on the planet since 2018.
The deposit was “unlike anything else” found in the region, known as Elysium Planitia, and closely resembled features made from older eruptions on the moon and Mercury, according to the release.

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