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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- 29 Sep: Webinar: Designing Research Campaigns for the Next Decade of Biological & Physical Sciences in Space
- 29 Sep: Webinar: Designing Research Campaigns for Biological and Physical Sciences in Space
- 29 Sep: EngageSpace
- 30 Sep: Lunar Science Workshop: Planetary Protection/PSR Classification
- 30 Sep: Hearing: NASA Missions and Programs: Update and Future Plans
- 1 Oct: Aerospace Safety Advisory Panel Meeting
- 2 Oct: NASA International Space Apps Challenge
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