We doubt many of you need a reminder but, just in case, we’re here to let you know that Space Shuttle Discovery is set for lift off today , at 4:50PM ET. While all shuttle launches are certainly worth watching, this one’s particularly notable for a number of reasons — it’s the last mission for Discovery and the third-to-last mission for the entire Space Shuttle program, and it’s the first mission to carry a humanoid robot into space: our friend Robonaut 2 . Head on past the break to watch Spaceflight Now’s live coverage of the launch. [Image: NASA / Flickr] Continue reading Space Shuttle Discovery launches at 4:50PM ET today with Robonaut 2 on board Space Shuttle Discovery launches at 4:50PM ET today with Robonaut 2 on board originally appeared on Engadget on Thu, 24 Feb 2011 15:39:00 EDT. Please see our terms for use of feeds . Permalink