The Dark Time Travel Paradox At The Heart Of Back To The Future

Time travel, as presented to us by Back To The Future, is basically a good deal: You get a hoverboard! You get to teach a gang of '50s teenagers how to rock! You get to drink sodas at completely un-ironic diners! But while a DeLorean ride through time may seem all fun and games, there's a grim fact at its center. » 1/29/15 4:20pm Yesterday 4:20pm

How It Would Look If Other Types Of Stars Were Close As The Sun

What would it look like if other stars were as close as the sun? For starters, we may have more than one, and it may be either much bigger or smaller than our current orbital star, as shown in these videos, which explore a hypothetical universe where our sun has been replaced with other stars and our moon with planets. » 1/29/15 9:20am Yesterday 9:20am

Why Riddick Wasn't The Real Hero Of Pitch Black 

Remember Pitch Black, in which interstellar castaways battled their way off a dark planet filled with photophobic monsters? Well, while Vin Diesel's Riddick may have been the character who went on to lead the franchise, a re-watch reveals something else: The real star of the story was actually someone else entirely. » 1/28/15 4:20pm Wednesday 4:20pm

One Of Our Most Popular Special Effects Originally Came From Anime

If you've been near a theater in the last few years, you've seen it happen: Somewhere deep in the middle of a bustling city an ill-defined ball of crackling "energy" swells. But just where does this rapidly-spreading trope come from? Here are its origins. » 1/27/15 4:20pm Tuesday 4:20pm

This Is Why The X-Files Never Became A Franchise

In addition to science fiction, The X-Files also fit neatly into another genre: the crime procedural. But, unlike other wildly successful crime dramas like Law & Order or CSI, it never managed to truly became a franchise. So what was it that prevented us from seeing The X-Files: Miami? There was a simple reason. » 1/26/15 4:20pm Monday 4:20pm

Why The Age Of The Kids Adventure Movie Is Over

Not so long ago, movies like The Goonies, Stand By Me, E.T., and many more sent pint-sized explorers out into the wilds of their own neighborhoods to have adventures. But, despite being imitated, they just haven't caught fire the way the once did. Why not? The real reason may actually be off-screen. » 1/22/15 4:20pm 1/22/15 4:20pm

A Simple Experiment That (Finally) Explains Just What Gravity Is


What is gravity? It's one of the easiest scientific concepts to understand the effects of, and one of the hardest concepts to understand by itself. Here — using a large sheet of spandex, some marbles, and a couple weights — is a demonstration that makes the entire concept remarkably graspable. » 1/21/15 4:20pm 1/21/15 4:20pm