O-ring erosion on Discovery would have disastrous effects a year later It has been 40 years since NASA launched the first ...

Discovery first flew in August 1984, completed 39 trips into space, and remains NASA's oldest surviving shuttle. Most famously, it delivered the Hubble telescope into space and returned Mercury ...

Space shuttle Discovery and its seven-member crew lifted off from NASA’s Kennedy Space Center at 7:43 p.m. EDT Sunday to deliver the final set of power-generating solar array wings and a new ...