How Can Space Travel Faster Than The Speed Of Light?

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Light speed is often spoken of as a cosmic speed limit … but not everything plays by these rules. In fact, space itself can expand faster than a photon could ever hope to travel. » 2/22/15 6:46pm 2/22/15 6:46pm

How big is the Universe, explained in a way you will easily understand

The Royal Observatory of Greenwich, England, has crafted three simple animations to explain three very complex things: What's inside a black hole, how do we know the age of the sun—did you know the Sun weighs 4,000 trillion trillion hippopotamuses?—and how big is the Universe. » 3/24/14 8:12pm 3/24/14 8:12pm

Here are the three ways that the universe will be destroyed

Nothing lives forever, not even our universe. Eventually it'll go kaput and be destroyed... but how? Smart people have wrapped their heads around the universe's destruction and have come upwith three different theories. The Big Rip, Heat Death (or the Big Freeze) and the Big Crunch and Big Bounce. They all sound like… » 2/04/14 6:46pm 2/04/14 6:46pm

The Objects in Space That We Really, Really Can't Explain

Forget UFOs — there are a lot of objects and events in space that are identified, but still completely incomprehensible. From planets in our solar system, to inexplicable energy bursts from across the universe, here are some of the enduring mysteries of the space and time we call home. » 1/02/14 5:33pm 1/02/14 5:33pm

Stunning First Images From the World's Most Powerful Digital Camera

Sat on top of a mountain in Chile is the world's most powerful digital camera. Known as the Dark Energy Camera, it's recently been fired up to image the night sky, in an attempt to find the exotic stuff that gets all physicists excited. These are the first images it's produced. And they're magnificent. » 9/18/12 8:20am 9/18/12 8:20am

Watch a 570MP, Dark Energy-Hunting Camera Be Built In Just Four Minutes

This camera weighs four tons. Its shutter and filter are both nearly five feet tall. And its job is to unlock the secrets of our universe's dark energy. Here's how they built it. » 11/12/10 1:00pm 11/12/10 1:00pm

A Mysterious Force Is Pulling Pioneer 10 Back Toward the Sun

I kind of dig space—especially the unexplained—so today I'm in a bit of a tizzy. Pioneer 10, you see—which left our solar system in 1983—is slowly being drawn back toward the Sun by an unknown force. » 9/19/10 10:00am 9/19/10 10:00am

Theoretical Warp Drives Theorized To Be Black Hole-Creating Doomsday…

I still think we should and will reach the stars, but today I'm forced to concede that using a theoretical "warp drive" might not be the best way to go: » 6/14/09 10:00am 6/14/09 10:00am