Happy Birthday, Arecibo!

The Arecibo Observatory in Puerto Rico was completed 50 years ago next month, in November 1963. It was an engineering milestone, and remains the world’s largest single-dish radio telescope, with a diameter of 305 m (1000 feet).

IEEE/ASME plaque at Arecibo (photo: Chris Amelung)

The Arecibo team have been celebrating all year (with a special anniversary symposium currently live on UMETIPTV). And justifiably so: it’s been 50 years of good work. Well done, team! Now, if only we could get you the world’s largest cake…

Update: The symposium is over, but Wired has a great article on the observatory.