Launch of XMM
Launch of XMM by the Ariane 5 launcher from Kourou, French Guiana, at 14:32 UTC on 10 December 1999.
Later, in February 2000, the mission's name was modified to XMM-Newton in honour of Sir Isaac Newton.
Last Update: 9 December 2019
Launch of XMM by the Ariane 5 launcher from Kourou, French Guiana, at 14:32 UTC on 10 December 1999.
Later, in February 2000, the mission's name was modified to XMM-Newton in honour of Sir Isaac Newton.