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LC Classification is
Science -- Astronomy -- Extraterrestrial life
1 - 5
The Goldilocks Zone
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...
Planetary Exploration in the Time of Astrobiology: Protecting Against Biological Contamination
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...
Life on Earth: Signpost to Life on Mars
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...
Magnetite Morphology and Life on Mars
This National Academy of Sciences scholarly paper discusses the strongest line of evidence for past life on Mars based on NASA's David McKay's original claims of finding nanofossils on the ALH84001 meteorite. This...
Evidence of Ancient Martian Life in Meteorite ALH84001?
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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