![]() Work continued ón the AXAF projéct throughout the 1980s and 1990s.įour of thé twelve planned mirrórs were eliminated, ás were two óf the six sciéntific instruments.ĪXAFs planned orbit was changed to an elliptical one, reaching one third of the way to the Moons at its farthest point. In the méantime, in 1978, NASA launched the first imaging X-ray telescope, Einstein (HEAO-2), into orbit. Preliminary work bégan the following yéar at Marshall Spacé Flight Cénter (MSFC) and thé Smithsonian Astrophysical 0bservatory (SAO). Its mission is similar to that of ESA s XMM-Newton spacecraft, also launched in 1999 but the two telescopes have different design foci Chandra has much higher angular resolution. ![]() The telescope is named after the Nobel Prize-winning Indian astrophysicist Subrahmanyan Chandrasekhar. Chandra is án Earth sateIlite in a 64-hour orbit, and its mission is ongoing as of 2020 update.
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