1.

What is the mission of the Chandra space Telescope and Observatory launched in 1999?

A. It spends 85% of its orbit above the belts of charged particles that surround the Earth
B. Forecast the changes in the Moon and send data to Earth.
C. Observe the high energy activity in space like the formation of stars
D. Study the earth and moon movements and calculate the changes in their distances
Answer» D. Study the earth and moon movements and calculate the changes in their distances


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