It's easy to fold a piece of paper in half once, twice or even three or four times. But what's the highest number of times one piece of paper can be folded in half?
A new search for alien signals focuses on planetary transits, when exoplanets pass right in front of their suns.
Mysterious "halos" of rock surrounding cracks in a Martian crater may be made of water-rich opal gemstones, a new study suggests.
Timbers from the hull of a 16th-century ship have been found in a flooded quarry in southeastern England.
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Black holes form natural time machines that allow travel to both the past and the future. But don't expect to be visiting dinosaurs any time soon.
Astronomers recently detected a massive explosion on the far side of the sun, which may have spat out one of the most powerful flares the sun can produce.
Researchers genetically altered mouse brain cells to produce physical timelines of their key events in the form of a self-assembling chain of fluorescent proteins.
Jewel damselfish living on coral reefs surrounding rat-infested tropical islands have become less territorial and less aggressive due to a bizarre ecological link between the two species: bird poop.
Stone Age dots, lines and Y-shaped marks might represent a type of proto-writing created by hunter-gatherers who lived in Europe at least 20,000 years ago.
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In quantum physics, particles exist in many states at once until you measure them. Can reality really work that way?
A minor G1-class geomagnetic storm will hit Earth right as our planet reaches perihelion, its closest point to the sun.
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The formation of the Bering Land Bridge connecting Asia to North America occurred much later than experts thought.