Commander Chris Hadfield is on Twitter while in space... and he has something to say to William Shatner.

Today's links, featuring a cat chillin', a prank involving a space-exploring sloth, and instant karma for a thieving cat.

A collection of confounding songs, from artists like Hootie and the Blowfish and Barenaked Ladies, that have been played in space.

Space -- we know it's vast, cold and nobody can hear you scream in it, but what does it smell like? Does it even have a smell at all? Turns out space does have a smell -- so strong a smell that it clings to spacesuits like BO to gym shorts.

There's a reason those suits are so roomy.

There's been a lot of speculation about what NASA will be using to follow up on the recently departed Space Shuttle (apart from paying Russia to let our astronauts bum rides into space at the cost of $63 million apiece).

Oh man.

Via scifisquad:Will Arnett is attached to star in a sci-fi romantic comedy [Ed.