Curious Minute answer

Which NASA space telescope, launched aboard Space Shuttle Discovery in 1990, is still observing the universe from Earth orbit?

The answer

Hubble Space Telescope

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Why it's right

Hubble launched on April 24, 1990, aboard Space Shuttle Discovery. Built for astronaut servicing, it has kept observing the universe from Earth orbit for decades.

NASA Science: the history of hubble

Did you know?

Hubble was designed so astronauts could visit it in orbit, replace instruments, and correct the mirror problem discovered after launch.

NASA: april 1990 hubble space telescope hst launched

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Sources: NASA, NASA