NASA's Mars Curiosity rover finds building blocks for life

NASA will announce on Thursday afternoon a new discovery made by its Curiosity rover, which landed on Mars six years ago with the goal of finding new signs of life. Those discoveries, announced this afternoon by NASA, show that Mars is not dead despite previous hypotheses and that signs of ancient life can be preserved. They join a now-extensive list of findings that hint at life on the Red Planet made by Curiosity since it landed in August 2012.