Study: Earth Will Be Uninhabitable in 1.75 Billion Years
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This Newsy.com video can serve as the starting point to discussions on the habitable zones of stars, the search for life-sustaining planets, and the life cycles of stars and planets.
This lesson can be completed in one 50 minute class period. Time periods are given as approximations, however, care should be given to allow for the full time to be allotted for the class discussion.