«On frozen planets, any potential life would be buried under layers of ice, which would make it really hard to spot with telescopes,» said lead author Ramses Ramirez, research associate at Cornell's Carl Sagan Institute. (carlsaganinstitute.org)
Lakes on the McMurdo Peninsula, the largest glacier - free swath of Antarctica, are the best available model for frozen planets. (sciencemag.org)
This led some to believe that Mars was never warm and wet but was a largely frozen planet, covered in ice - sheets and glaciers. (sciencedaily.com)