Launch of IRIS on Pegasus Rocket Dropped from TriStar Aircraft

An Orbital Sciences Pegasus Rocket, possibly the last ever launch of such rocket, was dropped from a TriStar Aircraft today before igniting it’s first stage engines for a ride into orbit. Drop came at around 02:27 UTC on June 28th 2013 and placed NASA’s IRIS Spacecraft into orbit.

Source: NASA Television

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