Window to the Universe – Hubble turns 25

April 2015 marks the 25th anniversary of the launch of the Hubble Space Telescope, the most famous telescope off the face of the Earth. Since its launch on April 24, 1990, Hubble has provided the greatest imagery of the universe the world has ever seen. The spectacular images from Hubble have reshaped humankind’s view of the cosmos, and revealed properties of space and time that have rewritten scientific theories and school textbooks.

Hubble’s success today is also a tribute to human ingenuity in space. After being deployed by the Space Shuttle Discovery crew, it was soon discovered that the telescope’s primary mirror had a flaw. The space observatory could still capture amazing images, but the clarity was affected. Astronauts had to make a service call in space.


Curl up tonight & watch our #Hubble25 film celebrating 25 years of an amazing telescope: - @NASA

What happened This Week @NASA? #Hubble25 anniversary, celebrating Earth Day and more! Watch: - @NASA

What ARE those spots on #Ceres? Vote: Follow @NASA_Dawn for science updates. #WorldCeres - @NASA

Did you know @Space_Station has cameras providing amazing views of Earth? More: @ISS_Research - @NASA

President Obama congratulates the hard work of the men and women of @NASA_Hubble: #Hubble25 - @NASA

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