Reproducing the large Earth/Mars mass ratio requires a strong mass depletion in solids within the protoplanetary disk between 1 and 3 AU.
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Astrogeology: September 2015
The long-term carbon cycle is vital for maintaining liquid water oceans on rocky planets due to the negative climate feedbacks involved in silicate weathering.
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- 20 Aug: JWST: Launch, Commissioning, and Cycle 1 Science
- 23 Aug: Nomination Hearing: James Morhard for NASA Deputy Administrator
- 23 Aug: Mars Society Convention
- 27 Aug: Comparative Climatology of Terrestrial Planets III (CCTP-3)
- 27 Aug: Comparative Climatology of Terrestrial Planets III (CCTP-3)
- 27 Aug: NASA Advisory Council Science Committee Meeting
- 27 Aug: NASA Advisory Council Human Exploration and Operations Committee Meeting
- 28 Aug: IAU Symposium 348: 21st Century Astrometry: crossing the Dark and Habitable frontiers
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