Explaining The Universe on Instagram: "In 1973, a modified Concorde supersonic jet performed one of the most remarkable eclipse observations in history by chasing the shadow of a total solar eclipse across Africa. As the Moon’s shadow raced over Earth at more than 1,500 km/h, scientists used the Concorde’s ability to fly at Mach 2 to keep up with it. Normally, totality lasts only a few minutes from any one spot on the ground, but by flying directly along the eclipse path, the Concorde stayed ins