NASA-led study suggests that tiny photosynthetic microbes could thrive in hidden bubbles of meltwater below patches of ice on Mars. This finding makes Martian ice exposures a promising place to search for extraterrestrial life. Researchers plan to recreate these conditions on Earth to test the predictions.

Source: https://www.livescience.com/space/mars/tiny-photosynthetic-aliens-could-be-lurking-in-hidden-bubbles-in-mars-ice-and-could-soon-be-replicated-on-earth