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It seems as if every freezer winds up with that layer of frost and ice taking up valuable space, as well as getting a bit icky. But Electrolux has a freezer that promises to defrost itself.
Scientists have revived a giant virus after it laid dormant in the Siberian permafrost for over 30,000 years.
Scientists pull a sample of moss out of an ancient deep-freeze and discover it was just waiting for a chance to grow again.
The Intergovernmental Panel on Climate Change says humans are to blame for our warming planet. Crave's Eric Mack recalls a time in Alaska where he learned exactly which humans could be most responsible.
If NASA isn't extremely careful about sterilization, then life on Mars could end up being exactly the same as certain forms of bacteria life on Earth.
Researchers in New Zealand found that DNA decays far quicker than previously considered, making it impossible to salvage usable genetic material from dinosaurs.
A Japanese scientist says he has a "reasonable chance" of successfully cloning the long-extinct woolly mammoth within just a few years, according to a report.
Free playlist: Earth To Mars
Interactive layer developed by British government lets users view side effects of worldwide temperature increase.
The World Monuments Fund issues a list of the 100 most endangered cultural sites in world.