This is Ground Control to Major Tomfoolery

Here am I, sitting in my tin can: A Canadian astronaut aboard the International Space Station has produced what is believed to be the first music video made in zero-gravity. Astronaut Chris Hadfield taped a version of David Bowie’s “Space Oddity” for YouTube.

Hadfield returned to Earth late Monday, unfortunately before he could finish work on programming the space station’s robotic Canadarm to play Pete Townshend’s windmill guitar riffs.

Work and play: Social networks Facebook and LinkedIn will celebrate the anniversaries of their initial public offering this week, with different outcomes: Facebook’s stock is down 29 percent to about $27 a share, while LinkedIn has climbed to more than four times its IPO value at $175 a share.

The difference could be a matter of LinkedIn’s role in the career world, but more likely it’s because people there don’t pester you with requests to play Candy Crush and FarmVille.

Don’t know much about history: On this day in 1973, NASA launched Skylab 1, the first manned space station, into orbit.

Even under the limitations of the era’s technology, Skylab’s astronauts were able to film the real first music video in space using a Super 8 camera and an 8-track deck playing Pink Floyd’s “Dark Side of the Moon.”

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