Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizThe Chandra X-ray Observatory is operated by _______.
- ESA
- NASA
- JAXA
- ISRO
Answer: NASA
Chandra is a flagship NASA space telescope launched in 1999, dedicated to X-ray astronomy, observing high-energy phenomena like black holes and supernova remnants.