Philosophy goes where hard science can't, or won't. Philosophers have a license to speculate about everything from metaphysics to morality, and this means they can shed light on some of the basic questions of existence. The bad news? These are questions that may always lay just beyond the limits of our comprehension.
The climate is changing. It was bound to happen, whether humans intervened or not. The Earth has gone through so many climate changes over its 4.5 billion years of life that it's enough to make your head spin — or melt, or get eroded by corrosive elements in the atmosphere, depending on what geological era you lived…
The world's population has exploded over the past century, growing from less than 2 billion to 7 billion people. And it's not stopping. The U.N.'s current projection is that humanity will number 9.3 billion individuals in 2050, and then hit 10.1 billion by 2100. Meanwhile, our energy resources are dwindling and…
NASA wants to visit Jupiter's moon Europa. Why's that exciting? In a word: Water. As this visualization shows, the icy moon may look tiny next to our own planet, but it's got 2- to 3-times as much H2O as we have here on Earth. That "little" moon is packing quite the store of water — and with it, scientists think, a…
Kissing is so commonplace that most people rarely think to stop and ask where humans picked up the habit in the first place. Where in humanity's evolutionary history did smooshing our faces together come to be regarded as a display of lust, care, friendship, and love?
After drilling down through almost half a mile in solid ice on a glacial shelf in Antarctica, scientists found something surprising. There was something alive swimming in the just over 30 feet of water: this strange, clear fish.
The Cassini Orbiter captures a different view of Saturn, in which the planet and its rings seem to vanish into darkness.
Researchers at the British Library have inadvertently stumbled upon what appears to be an "eccentric" architectural plan drawn by King George III. Drawn during his period of madness, it offers a bizarre glimpse into the long-reigning monarch's deteriorating state of mind.
King Herod's most ambitious project was Herodium, a fortified palace on top of a hill in the Judean desert. Honeycombed with passages and chambers, it also became his mausoleum. Now, archaeologists have found a resplendent, 65-foot corridor to provide the royal entourage direct entry into the palace courtyard.
In December 1999, NASA launched the Terra satellite to collect climate data. It would be the first spacecraft in a fleet of 18 Earth-observing satellites that, over the last 15 years, have opened up a new era of exploration of our home planet. To celebrate, the space agency has compiled some of its most stunning gifs.
Scientists exploring the deepest place on Earth — the Mariana Trench in the Pacific Ocean — have captured footage of a never-before-seen fish at a record depth of 26,722 feet (8,145 meters).
Definitely don't try this at home (or if you happen across a volcanic vent), but if you've ever wondered what would happen if you pressed down on hot lava, this video is a must-watch. It's a great lesson in how the reality of lava differs from the way many people think of the substance.
A comprehensive review of the state of the Arctic reveals some troubling information about rising temperature rates, which are more than double those of anywhere else on Earth, as well as some strange new habitat changes for polar bears.
NASA's HiRISE has sent back a rather peculiar image of a circular landform on the surface of Mars.
Geckos, being master of the van der Waals force, climb up glass walls like it's no big thing. But can they do it when they're dead? Scientists have found out that they can, and that has important implications for technology.
The alpha wolf is a figure that looms large in our imagination. The notion of a supreme pack leader, who fought his way to dominance and reigns superior to the other wolves in his pack, is huge in pop culture. And this idea informs how many people understand wolf behavior. But the alpha wolf doesn't exist—at least,…
Classic robots are absolutely weird, but there can be something unnerving about seeing dogs, snakes, bees, fish, and birds in robotic form. From uncanny headless creatures to mechanical snakes that can squeeze their way up a person's leg, here are the robotic critters we can't stop staring at.
If you've never seen a Purple Frog before, that's in part because the amphibian does everything underground—except breed. For the first time, the mating of the Purple Frog has been captured on film, and, well, it's a bit tricky for the frogs.
Nigel Stanford's song Cymatics is named for the study of visible sound vibrations, and we see sound made visible in this music video. In fact, this video is a treasure trove of science, with ferrofluid, Chladni plates, Tesla coils, and a fiery Ruben's tube.
While some scientific discoveries are made by following logical pathways, others are made by accident, often while the discoverer was trying to accomplish something else entirely. Learn about the accidents behind cheap purple dye, artificial sweetener, and non-stick coating.