"The Earth-orbiting space shuttle Challenger beyond the Earth's horizon was captured [on 22 June 1983] by a 70mm camera onboard the unmanned, free-flying Shuttle Pallet Satellite (SPAS-01) during the busy flight day 5 of the [NASA] STS-7 mission." Photo credit: NASA [3834 x 3834]

https://go.nasa.gov/2JLNYtm via /r/spaceporn http://bit.ly/2QEQO4e