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Bad Astronomy | Volcanism on Mars may still be active today


These fissures in the crust are called fossae, and are due to tectonic extension, where the ground is pulled apart from pressure under the surface. As I ve written before:
What caused these cracks? They are most likely due to tectonic extension, when the surface is stretched for some reason. You ve seen something like this before if you ve ever made a cake or muffins. The top will brown and harden first before the middle. As the interior of the cake cooks, it expands, pushing up against the already-cooked top. That pressure can cause the top to split and pull apart, creating a crack or rift. ....

Phil Plait , Elyisum Planitia , Red Planet , Mars Reconnaissance Orbiter , Elysium Planitia , Cerberus Fossae , Mars Insight , பில் பிளேட் , சிவப்பு கிரகம் , செவ்வாய் கிரகம் நுண்ணறிவு ,

There's Evidence Volcanoes Are Active on Mars, Raising Chances of Recent Habitability


There s Evidence Volcanoes Are Active on Mars, Raising Chances of Recent Habitability
Evidence seems to be mounting for a geologically and volcanically active Mars.
A new, close study of volcanic features on the surface of the red planet has found that a lava deposit on the Elysium Planitia appears to be very recent indeed - as in, within the last 50,000 years.
 
On geological timescales, that s shockingly short. And it could mean that Mars was potentially habitable just as recently, with parts of it similar to regions of volcanic activity in glacial areas such as Iceland, where various forms of extremophile bacteria thrive. ....

United States , David Horvath , Murray Lab , Planetary Science Institute , University Of Arizona , Elysium Planitia , Cerberus Fossae , Mars Insight , Cerberus Fosse , ஒன்றுபட்டது மாநிலங்களில் , டேவிட் ஹார்வத் , முர்ரே ஆய்வகம் , கிரகங்கள் அறிவியல் நிறுவனம் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , செவ்வாய் கிரகம் நுண்ணறிவு ,

Signs of Volcanic Activity on Planet Mars Hint at Chance it Might Have Hosted Life


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United States , David Horvath , Planetary Science Institute , University Of Arizona , Elysium Planitia , Cerberus Fossae , Tale Signs , Mars Insight , Cerberus Fosse , ஒன்றுபட்டது மாநிலங்களில் , டேவிட் ஹார்வத் , கிரகங்கள் அறிவியல் நிறுவனம் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , கதை அறிகுறிகள் , செவ்வாய் கிரகம் நுண்ணறிவு ,

Seismicity on Mars full of surprises, in first

Seismicity on Mars full of surprises, in first
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United States , Savas Ceylan , Seismological Society Of America , Marsquake Service , Mars Insight , Seismological Society , ஒன்றுபட்டது மாநிலங்களில் , செவ்வாய் கிரகம் நுண்ணறிவு ,

Seismicity on Mars full of surprises, in first continuous year of data


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The SEIS seismometer package from the Mars InSight lander has collected its first continuous Martian year of data, revealing some surprises among the more than 500 marsquakes detected so far.
At the Seismological Society of America (SSA) s 2021 Annual Meeting, Savas Ceylan of ETH Zürich discussed some of the findings from The Marsquake Service, the part of the InSight ground team that detects marsquakes and curates the planet s seismicity catalog.
Marsquakes differ from earthquakes in a number of ways, Ceylan explained. To begin with, they are much smaller than earthquakes, with the largest event recorded at teleseismic distances around magnitude 3.6. SEIS is able to detect these small events because the background seismic noise on Mars can be much lower than on Earth, without the constant tremor produced by ocean waves. ....

United States , France General , Savas Ceylan , Marsquake Service , Seismological Society Of America , Mars Insight , Seismological Society , Cerberus Fossae , ஒன்றுபட்டது மாநிலங்களில் , பிரான்ஸ் ஜநரல் , செவ்வாய் கிரகம் நுண்ணறிவு ,