Roaming the ancient seas eons ago, the megalodon shark eviscerated its prey with jaws that were 10 feet wide.
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Time dilation might seem like science fiction, but it’s not. There are astronauts circling the Earth right now who are experiencing it – though luckily nowhere near as much as Buzz Lightyear.
Frilled sharks haven’t changed for about 80 million years! And while they may look a bit like snakes from a distance, they are actually much more similar to other sharks close up.
President William Howard Taft and his wife rode in this steam-powered automobile in 1909.
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The Moon illusion is what makes the Moon look giant when you see it rising over a distant horizon. An astronomer explains what causes this awe-inspiring trick of the mind.
Pluto was recategorized from a planet to a dwarf planet in 2006.
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A curious kid asks: Why does it matter if Pluto is a planet or a dwarf planet?
Plastic trash accumulates in trees and shrubs along the Los Angeles River.
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Plastic is made from oil and natural gas, which started out as fossilized plant and animal material. But buried deep underground for millions of years, those materials changed in important ways.
There’s a special type of particle called a ‘tachyon’ which would have to travel faster than the speed of light. But here’s the hitch – we can’t prove tachyons even exist.
Interior view of Polito’s Royal Menagerie, Exeter Change, Strand, Westminster, London, 1812.
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