Reproducing the large Earth/Mars mass ratio requires a strong mass depletion in solids within the protoplanetary disk between 1 and 3 AU.
Loading
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.
Calendar
- 22 Oct: NASA Astrophysics Advisory Committee Meeting
- 23 Oct: Tennessee Valley Interstellar Workshop 2018
- 23 Oct: Transformers: Space
- 23 Oct: National Space Council Meeting
- 23 Oct: Wernher von Braun Memorial Symposium
- 29 Oct: ATCA/FAA Commercial Space NAS Integration Conference 2018
- 30 Oct: Towards an All-Sky Radio SETI Telescope
- 31 Oct: Annual Meeting of the American Society for Gravitational and Space Research
- 1 Nov: SpaceVision 2018
- * Submit Your Event | More Events *
Recent Articles
Masthead
Tip your editors
tips@spaceref.com