Calibration is a key moment in the life of a space telescope before launch. Those who have designed and built the instrument and the future users must precisely measure its performance before it ...
Today, the European Space Agency's gamma-ray telescope ends its observations. During its 22 years in space, Integral has reshaped our view of the most dramatic events in the universe. The high-energy ...
The International Gamma-ray Astrophysics Laboratory (INTEGRAL), a space-science mission led by the European Space Agency, launched successfully on October 17, 2002, from the Baikonur Cosmodrome in ...