Life on Mars or on sediments, either free-living or as biofilms, respectively. Impactite, shown to preserve signs of life on Earth, was discovered on Mars and could contain signs of ancient life, if life ever existed on the planet. On June 7, 2018, NASA announced that the "Curiosity" rover had discovered organic molecules in sedimentary rocks dating to three billion years old. The detection of organic molecules in rocks indicate that some of the building blocks for life were present. Conceivably, if life exists (or existed) on Mars, evidence of that life could be found, or is best preserved, in the subsurface, away
Hard Time on Planet Earth Hard Time on Planet Earth Hard Time on Planet Earth is an American science fiction series that aired on CBS as a midseason replacement in 1989. Airing for 13 episodes, the series starred Martin Kove and was created by Jim and John Thomas. Scheduled opposite NBC's "Unsolved Mysteries" and ABC's "Growing Pains" on Wednesdays, "Hard Time on Planet Earth" ranked 65th out of 81 programs upon its premiere. Ratings for the series never improved and the series was canceled by CBS in May 1989. The last episode aired on June 21, 1989. The main character was an alien Elite Military