It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
(EDITED TEXT from New Scientist)
If life ever got going on Mars, it may have been exterminated 4 billion years ago by a buildup of salt. Evidence that the planet is poisonously salty comes from a study of minerals near the Martian surface. They use a fairly abstruse measure of saltiness called "water activity", which decreases as you add salt to water. Pure water has an activity of 1; seawater 0.98. Few terrestrial organisms can survive at a water activity below 0.85.
Originally posted by oinkment
- "weather" on mars seems kinda mild so how did its seas get so salty so early??