OTD…Aug. 27 and STS-51I

A mission to service the Hubble Space Telescope blasted off on this date in 2002.

OTD in 1994…Endeavour experienced an on-pad abort due to a main engine problem during startup

The first crew to inhabit Skylab — Conrad, Weitz and Kerwin — launched today in 1973 for a 28-day mission that successfully made critical repairs, brought the station into operation and conducted solar astronomy, Earth resources and medical experiments.