kozy138
kozy138 t1_iu12mwq wrote
Reply to comment by Sierra-117- in A recently released set of topography maps provides new evidence for an ancient northern ocean on Mars. The maps offer the strongest case yet that the planet once experienced sea-level rise consistent with an extended warm and wet climate, not the harsh, frozen landscape that exists today. by Wagamaga
Without a core, how would Mars have been warm enough to contain liquid water? Extremely high salt concentrations that lower the melting temperatures?
kozy138 t1_iu0pedg wrote
Reply to A recently released set of topography maps provides new evidence for an ancient northern ocean on Mars. The maps offer the strongest case yet that the planet once experienced sea-level rise consistent with an extended warm and wet climate, not the harsh, frozen landscape that exists today. by Wagamaga
This is actually amazing. Is the assumption that an ocean would almost certainly have thermal vents that created conditions for rudimentary forms of life?
kozy138 t1_iyn4ayv wrote
Reply to comment by n4te in Toledo Zoo welcomes twin polar bear cubs by citytiger
Tbf, I've seen pictures of some pretty miserable looking polar bears in the wild as well.