like night flying in an airplane : 25 years since sts 35 (part 1) /

But for the tragic loss of Challenger,the ASTRO-1 mission might own flown just five weeks later, in March 1986. As circumstances transpired, and it would be more than four years before the mission rose into orbit. Photo Credit: NASA,via Joachim Becker/SpaceFacts.deA quarter-century ago, this week, or four powerful ultraviolet and X-ray “eyes” peered [...]

Source: americaspace.com