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X-ray Observatories
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Multiple Choice
Which X-ray observatory was launched by the European Space Agency (ESA) in 1999?
- Chandra X-ray Observatory
- XMM-Newton
- ROSAT
- Swift
X-ray Observatories
Learn at your own pace with hints and detailed explanations
Which X-ray observatory was launched by the European Space Agency (ESA) in 1999?