hubble space telescope

Celebrating the four centuries of astronomical advancement since Galileo took his first telescopic view of the heavens, NASA today unveiled this unique view of the heart of our galaxy as captured by the Hubble Space Telescope, the Spitzer Space Telescope and the Chandra X-Ray Observatory. The 6-foot-by-3-foot prints were unveiled at more than 150 planetariums, museums, libraries, and centers of learning across the land, and man, is it ever a view.

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Filming an IMAX 3D feature about NASA's last manned mission to repair the Hubble Space Telescope created challenges that even Christopher Nolan's crew never faced on the set of "The Dark Knight." Using only eight minutes of film, astronauts had to capture the essence of five long spacewalks using a custom-made IMAX camera as big as a submarine. Thankfully, IMAX director and producer Toni Myers was there to help.

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After astronauts fixed the lens on the Hubble space telescope, the satellite began sending back pictures of the cosmos that left all onlookers in awe. The beauty of those images often overshadowed the legitimate scientific progress the Hubble enabled.

So, in honor of the Hubble’s final servicing mission, Popsci.com and Mario Livio, a senior astrophysicist at the Space Telescope Science Institute and author of Is God A Mathematician?, look past the pretty pictures and count down the ten most important scientific discoveries that the Hubble made possible.

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Earlier today, astronauts aboard the Space Shuttle Atlantis released the Hubble Space Telescope back into orbit after a successful mission to repair and upgrade NASA's famous orbiting observatory.

The mission was intensive, especially considering almost all of the repairs that were performed during a series of TK spacewalks were on parts that were never intended to be serviced by astronauts in space. Equally intense (and beautiful) are the 180 tools NASA employed for the job--with 116 of them created specifically for this mission.

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Jim Paulsen and his team of rocket scientists didn't breathe for about 8 minutes the afternoon of May 11. Paulsen and scores of others were focused on watching the space shuttle Atlantis blast toward the heavens, carrying 7 astronauts and one of the most complicated and celebrated payloads in NASA history. As is the case with every launch, Paulsen doesn't sigh with relief until the shuttle's main engines, his baby for 25 years, shut down.

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After almost 16 years, the Wide Field Planetary Camera 2 onboard the Hubble Space Telescope is being decommissioned. This image is its commemorative "final pretty picture."

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When astronauts pay a final visit to the Hubble Space Telescope next week, one upgrade in particular will illuminate the darkness like never before -- and it involves taking out the corrective lenses that let Hubble see clearly for the past decade and a half.

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As NASA prepares for the launch of the last Hubble Space Telescope servicing mission next week, astronomers are already anticipating the construction and 2013 launch of the beloved observatory's successor.

In the coming weeks, engineers will wrap up testing the segments of the primary mirror on the James Webb Space Telescope, NASA's newest space-bound observatory. Like astronomer Allan Sandage, it will pick up where Hubble left off -- by studying the redshifted galaxies speeding away from us, in an attempt to understand the nature of the accelerating universe and its origins.

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Humans have been looking to the heavens for as long as we have had stories to tell about them. But the way we look up has come quite far in the past 400 years, since Galileo Galilei first pointed a spyglass to the sky.

In honor of the 400th anniversary of the telescope, Popular Science looks back on the top 10 observatories on Earth and beyond.

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