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Increased Hydrogen Escape From Mars Atmosphere During Periods Of High Obliquity - Astrobiology

Summary by astrobiology.com
IMAGE Caption: Sketch showing processes leading to larger H-loss in the past 20 million years (Myr). The loss rate is not expected to have been constant with time, and may vary significantly during Martian history. Panel A: In current obliquity conditions (25.2◦) the water ice in the polar caps sublimes in Summer, and then it […] The post Increased Hydrogen Escape From Mars Atmosphere During Periods Of High Obliquity appeared first on Astrobiolo…
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astrobiology.comastrobiology.com

Increased Hydrogen Escape From Mars Atmosphere During Periods Of High Obliquity - Astrobiology

IMAGE Caption: Sketch showing processes leading to larger H-loss in the past 20 million years (Myr). The loss rate is not expected to have been constant with time, and may vary significantly during Martian history. Panel A: In current obliquity conditions (25.2◦) the water ice in the polar caps sublimes in Summer, and then it […] The post Increased Hydrogen Escape From Mars Atmosphere During Periods Of High Obliquity appeared first on Astrobiolo…

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se7en.wsse7en.ws

Mars' Tilt Change Has Caused Massive Water Loss: 79 Meters in 4 Billion Years

Spanish and French scientists have found a link between ancient changes in the tilt of Mars’ axis and rapid water loss. The study showed that with an axis tilt of 35° (the average over the past 20 million years), the rate of hydrogen leakage from the upper atmosphere (exosphere) reached 1.17 × 1028 atoms per second. This exceeds modern figures (3 × 1026 atoms/s) by 40 times... The post Changes in Mars’ tilt led to accelerated loss of large-scale…

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se7en.ws broke the news in on Friday, May 23, 2025.
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