Update 1:49 p.m.: SpaceX's launch webcast is now posted above, right below our countdown clock. Liftoff is scheduled in four minutes from Cape Canaveral Space Force Station. SpaceX to launch NASA ...

For millions, it was an event that would be seared into their memories for the rest of their lives – on par with the Kennedy assassination and 9/11.

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle ... had flown on a shuttle. Classrooms across America watched the launch.

Get all the news you need in your inbox each morning. After stage separation, the Falcon 9 first-stage booster ...

The first shuttle mission of 1995, STS-63 included several historic firsts. As part of Phase 1 of the International Space ...