On This Day in Space! April 25, 1990: Space shuttle Discovery deploys the Hubble Space Telescope

In Space by Hanneke WeiteringLeave a Comment

On April 25, 1990, the Hubble Space Telescope was deployed!

Hubble is famous for taking some of the most amazing deep-space photos ever. It hitched a ride to space on the space shuttle Discovery with mission STS-31. Also on board were astronauts Charles Bolden, Loren Shriver, Bruce McCandless, Steven Hawley and Kathryn Sullivan.

The crew used a Canadian-built robotic arm to deploy Hubble from the shuttle’s cargo bay while they were orbiting 332 nautical miles (534 kilometers) above the Earth. No one knew it at the time, but Hubble wouldn’t be taking any pretty pictures anytime soon.

When Hubble took its first photos almost a month after it was deployed, the pictures were out of focus because of a flaw in its mirror. Thankfully, the problem was fixable, and astronauts successfully repaired it in 1993.

Catch up on our entire “On This Day In Space” series on YouTube with this playlist.

Still not enough space? Don’t forget to check out our Space Image of the Day, and on the weekends our Best Space Photos and Top Space News Stories of the week.

Email Hanneke Weitering at hweitering@space.com or follow her @hannekescience. Follow us @Spacedotcom and on Facebook.

This article was adapted from a previous version published in All About Space Bookazine, a Future Ltd. publication. Follow us on Twitter @Spacedotcom and on Facebook.

This article was adapted from a previous version published in All About Space Bookazine, a Future Ltd. publication. Follow us on Twitter @Spacedotcom and on Facebook.

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