This on-line news article introduces the Goldilocks Zone, an area of space adequate for the survival of life. Initially believed to be a remarkably small region of space that didn't even include the whole Earth, recent...
This article discusses the history and future of planetary-protection restrictions. It begins by addressing the difficulty of discovering (possibly rare) life elsewhere, and then describes the potential difficulties of...
This magazine article features an interview with Mars Analog Research and Technology Experiment (MARTE) scientist Carol Stoker. In this second session of a four-part series, Stoker talks about some of the problems that...
This National Aeronautics and Space Administration website provides a summary of a study led by NASA's David McKay that may provide evidence for past life on Mars. McKay and his team found carbonate globule features on...
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