NASA's Hubble space telescope just lost a vital part, and one of its backups is 'acting drunk.' Here's why astronomers haven't lost hope.
Business Insider -

A vital part inside the Hubble Space Telescope, which records stunning images of the universe, failed on Friday.

The part is called a gyroscope and helps Hubble point at celestial objects.

It's the third of six total gyros to fail since 2009, when astronauts last serviced Hubble. Another gyro is acting "drunk," one official said.

NASA may start using a single gyro to extend the telescope's lifespan, but this would limit the observations Hubble can make.

When Hubble dies, NASA will have a few...

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