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When was the last time Antarctica was ice-free?Antarctica is covered by a miles-thick ice sheet, but was that always the case? And when was the coldest continent ice-free?
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Do you weigh more when an elevator goes up or when it comes down?Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly make you feel heavier or lighter.
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Did the Vikings reach Maine?An 11th-century Norse coin found in Maine raises the question of whether the Vikings landed there.
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60 mind-blowing science facts about our incredible worldLife's Little Mysteries If you're looking for weird facts about animals, gross human body facts or just something a bit random, get ready to geek out with these fascinating bits of trivia.
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How can deserts form next to oceans?Deserts are notoriously dry, so why do so many of them border oceans?
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What is rigor mortis, and why does it happen?Bodies usually stiffen after death in a process known as rigor mortis. But why does this happen, and how long does it last?
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How long do most planets last?Planets are born, and they can also "die." So what's the lifespan of a typical planet?
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What are ghost lineages, remnants of the past that still exist in our DNA today?Ghost lineages reveal themselves through ancient genes that still exist in living beings today.
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Did ancient Greeks let women compete in the Olympics?The ancient Olympic games were crowded with male athletes, but were there opportunities for females to compete in sports?
