Wednesday, 31 May 2017

High-Silica 'Halos' Shed Light on Wet Ancient Mars

Discolored Fracture Zones in Martian Sandstone

Pale "halos" around fractures in bedrock analyzed by NASA's Curiosity Mars rover contain copious silica, indicating that ancient Mars had liquid water for a long time.





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NASA’s IXPE Measures White Dwarf Star for First Time

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