MAR­TIAN CLAY NEEDS WARMTH

Sky at Night Magazine - - BULLETIN -

The cli­mate of Mars may have gone through brief pe­ri­ods of warmth, ac­cord­ing to the lat­est re­search from the SETI in­sti­tute. There are nu­mer­ous clay beds on Mars, which re­quire warmer tem­per­a­tures to form than are thought to have ex­isted on the early planet. Af­ter study­ing sim­i­lar clay on Earth, the team has revealed that such beds could form if there are oc­ca­sional pe­ri­ods of warmer weather, per­haps caused by vol­canic erup­tions or small changes in the tilt of Mars’s or­bital axis.

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