In space, no one can hear a tardigrade scream. They can, however see the tiny organisms (also called water bears) survive a trip through that icy, radiation filled void relatively unscathed.

Although it's only one part of the answer, we have come another step closer to solving the question of how life originated. Two necessary molecular ingredients of DNA and RNA have been confirmed to have originated from outer space. They join the handful of amino acids we have discovered to have been delivered to Earth on the backs of asteroids and comets.

First, way back in 2002, we reported on this crazy new kind of movie-making, called â€machinima,†that uses videogames and virtual worlds as platforms for creating animated films.

Celebrity guests, zombies, nudity, endearing pop ballads, giant squids-our Second Life concert featuring Jonathan Coulton had it all. Relive all the virtual memories of a night of virtual rock in this gallery of highlights. Or see what you missed spending your Thursday night in the "real" world. Suckers!

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For an exclusive photo tour of Second Life, click here.

Humans naturally have the power to remember almost two bits of information per second, or a few hundred megabytes over a lifetime. Compared with a DVD movie, which holds up to 17 gigabytes, that´s nothing. Worse, you might easily recall the 40-year-old dialogue from Hogan´s Heroes yet forget your mom´s birthday. Or memorize reams of sports stats while spacing out on work you completed just last week.

It´s a problem that´s been bothering Gordon Bell for almost as long as he can remember.