Timeline for Why has Earth's core not become solid?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Dec 22, 2014 at 21:43 | comment | added | David Hammen | Mars has not cooled down to this point. It still has a liquid core. See Yoder, et al. (2003), "Fluid core size of Mars from detection of the solar tide," Science 300.5617 : 299-303. | |
| Oct 11, 2013 at 16:03 | comment | added | Olin Lathrop | @dj_mu: The initial heat is lost by black body radiation from the surface. The energy of this heat is proportional to the planet mass, but the loss rate is proportional to the surface area. Small planets like Mars have less mass per surface, so cool faster. Radioisotope heating power is also proportional to mass or volume, but is also lost proportional to surface area. Mars looses again compared to Earth, as does our moon. | |
| Oct 9, 2013 at 13:08 | history | answered | Olin Lathrop | CC BY-SA 3.0 |