The European Space Agency has selected the Athena X-ray observatory as its second "large-class" science mission. Athena -- which will cost about 1 billion euros ($1.36 billion at current exchange rates) -- is scheduled to blast off in 2028.
The European Space Agency has selected the Athena X-ray observatory as its second "large-class" science mission. Athena -- which will cost about 1 billion euros ($1.36 billion at current exchange rates) -- is scheduled to blast off in 2028.
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