At today's House hearing for the NASA Authorization Act of 2013, witness Thomas Young was asked how long it would take the Agency to put a human on Mars with its current budget. His response was unambiguous: “Never.”

The simple flame is an extraordinarily complex phenomenon, one that involves thousands of chemical reactions. But fire also plays off the effects of gravity. So what happens when you take that gravity away? As a recent experiment aboard the ISS has shown, you get a very strange flame, indeed.

Today's XKCD centers on the human tendency to reflect on the past through an idyllic lens (or look toward the future through a foreboding, misanthropic one). It's fantastic.

Just how many hells did Vin Diesel have to crawl through to make a third Riddick movie a reality? And what sort of future epics about Riddick does Diesel plan to make? Here's part two of our report on our visit to the Riddick set, focusing on our interview with the legendary Furyan himself.

Do you like smashing things? Do you like the word "smash" being repeated over and over? Well, then you have a fair to middling chance of enjoying Marvel's new Hulk and the Agents of SMASH cartoon.

Romanian photographer Maximilian Teodorescu recently captured this dramatic photo of the International Space Station (ISS) as it drifted across the surface of the Moon. But looking at it a bit closer, you could be forgiven for thinking it was the starship Enterprise.

Holy crap. The rumor that a startling 90 episodes of lost Doctor Who material had been recovered seemed too good to be true. So we weren't entirely surprised when it was shot down. But now, the world's biggest expert on missing episodes is saying it's true after all. Could our dreams be real?

No clue when we'll see a big-screen Justice League movie — but we're seeing Batman, Superman and Wonder Woman on the big screen next year. Along with one of the Mutant Ninja Turtles and some NBA All Stars. Check out this astounding trailer!