Since the 1960s, the Drake Equation has been used to predict how many communicative extraterrestrial civilizations exist in the Milky Way galaxy. Along these same lines, a new formula seeks to estimate the frequency at which life emerges on a planet—a calculation that might allow us to figure out the likelihood of…

People may joke that others spend too much time on the internet, but this intricate series of tubes has become an important part of everyday life—so much so that it’s become a human rights violation to take it away.

Halley’s Comet pays us a visit every 76 years or so, but its exact arrival date cannot be predicted. A team of European astronomers has finally come up with an explanation for this comet’s erratic behavior.

One of the biggest questions about the DC/CW universe of shows is whether the Flash, when he ended his second season by saving his mom in the past and rewriting the timeline, would also have changed the timelines of Arrow and Legends of Tomorrow. Yesterday, Stephen Amell suddenly declared that it would. Then he…

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An extraordinarily large landslide has been discovered near Glacier Bay in southeast Alaska. Aerial photos show a snow-capped mountain with a huge chunk taken out of it—and a debris field that extends for nearly seven miles.

For weeks, viewers of Preacher have probably been wondering what the special power Jesse Custer had actually was. Last night, the angels DeBlanc and Fiore finally explained it to them (and Jesse) and, as a result, we got one of those incredible, jaw-dropping action scenes that illustrates why this show has so much…

If you’re going through Game of Thrones withdrawal—and aren’t we all—then you need to watch this video immediately.

Let me be perfectly clear; this is an 8-minute behind-the-scenes featurette of the oh-my-god-I-can’t-believe-it’s-finally-happening season five of Samurai Jack. It includes no new footage, very little info, and only the briefest glimpses of what may be in store. Here’s why you should watch it anyway.

The fact that Peggy Carter becoming Captain America is just for a Marvel mobile game tie-in and not, say, an ongoing comic book series that lasts 10 years is breaking my heart as much as it’s making me want to triumphantly wave the stars and stripes, and I’m not even American.

J.K. Simmons talks Justice League. A wrestler is making a guest appearance in Arrow’s next season. Gillian Anderson teases her American Gods role. Plus, new set pictures from The Dark Tower, what’s in store for Lucifer, and tons of new clips from Star Trek Beyond. To me, my Spoilers!

Medieval armor has a bad reputation when it comes to how much movement is possible for a fully-armored and outfitted knight. Chances are you’ve bought into the notion that it resulted in clunky, slow, and awkward battles.

Ladies and Gentlemen, for the past ten weeks io9 has set up a post-Game of Thrones chat thread for fans to feverishly ruminate on the events of the latest episode. But there is no new Game of Thrones episode to talk about this week. So let’s break from tradition and talk about, well... anything. Even Game of Thrones!

Critical reaction to Steven Spielberg’s traditional take on the Roald Dahl classic The BFG has been positive, if mostly ambivalent. The same, sadly, can’t be said for its reception at the box office, where it is setting the world on fire with all the force of the dampest squib.