Integral’s “Apollo 13” Moment: Three Hours To Rescue Spacecraft From “Death”

The task of Integral, ESA’s International Gamma-Ray Astrophysics Laboratory, is to gather the most energetic radiation that comes from space. Credit: ESA. Illustration by D. Ducros On September 22, around midday, ESA’s Integral spacecraft went into emergency Safe Mode. One of the spacecraft’s three active ‘reaction wheels’ had turned off without warning and stopped spinning, […]