Out of this world:

It’s official: there is nothing Chris Hadfield can’t do. High school scholar? Check. Elite fighter pilot? Check. First Canadian to walk in space? Check. And now, just days into his mission as the inaugural Canadian commander of the International Space Station, Hadfield has set the standard yet again—recording the first-ever song from space. Dressed in khaki shorts and a pair of grey tube socks, the Sarnia, Ont., native strummed an acoustic guitar while orbiting the Earth. His song of choice? Jewel in the Night, a Christmas tune written by his brother Dave Hadfield: “Wherever we go / In all of the wonders above / With all that we bring / There’s no finer thing / Than this message, this promise of love.”

Private shot, public spat

Facebook’s privacy settings can be utterly infuriating—even for a Zuckerberg. Randi Zuckerberg, the sister of Facebook founder Mark Zuckerberg, flew into a Twitter rage when she discovered that a marketing director named Callie Schweitzer had tweeted one of her private photos. It was “way uncool,” she charged. But it turned out Schweitzer didn’t actually breach any of the website’s privacy rules; she and Zuckerberg simply shared a mutual friend, and that’s how the photo came to light. Still, Randi used the public spat as an opportunity to lecture the world about the etiquette of online sharing. “Always ask permission before posting a friend’s photo publicly,” she tweeted. “It’s not about privacy settings, it’s about human decency.”

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