This Public Broadcasting Service (PBS) activity explores the controversy over whether or not there is life on Mars. Part of the Mysteries of Deep Space Program that originally aired in April 1997, the activity includes...

This webquest introduces students to the processes of star and planet formation and the search for life on other worlds. Materials include slide shows with written narrative that explain the birth and life cycles of...

This video segment, adapted from a NOVA broadcast, explores the possibility that extraterrestrial life might exist, and that there may even be advanced alien life. The segment covers the Search for Extraterrestrial...

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...

This report examines the ability of two halophiles isolated from San Francisco Bay to survive severe Martian conditions. The report introduces the extreme conditions on Mars and offers a brief survey of extremophiles. ...