Saturday, April 9, 2011

HUBBLE turns 21

Today's A-Z Challenge ~ "H" is for Hubble.
Credit: NASA

We've come a long way from when Galileo pointed his telescope at the stars in 1610. On April 24, 1990, the Hubble became the first major optical telescope positioned in space.  Twenty-one years later Hubble is still going strong.

Named after America astronomer Edwin Hubble, the Hubble's current mission is gathering data on the nature of dark energy. According to the NASA website,
"Every decrease in uncertainty of the universe’s expansion rate helps solidify our understanding of its cosmic ingredients. Knowing the precise value of the universe's expansion rate further restricts the range of dark energy's strength and helps astronomers tighten up their estimates of other cosmic properties, including the universe's shape and its roster of neutrinos, or ghostly particles, that filled the early universe."
Image  Credit: NASA
"We are using the new camera on Hubble like a policeman’s radar gun to catch the universe
speeding," Riess said. "It looks more like it's dark energy that’s pressing on the gas pedal."

 Here are some of the spectacular sights that Hubble has shown us from it's unobstructed view of the universe.

 Gas pillars in the Eagle Nebula
Credit: NASA, ESA, STScI, J. Hester and P. Scowen (Arizona State University)

SuperNova 1987: Halo of Vanished Star
Credit: Dr. Christopher Burrows, ESA/STScI and NASA
Visible Baryonic Matter
Credit: NASA, ESA, and R. Massey (California Institute of Technology)
Spiral Galaxy M100
Credit: NASA

Visit HUBBLESITE for more spectacular photos, interesting facts about the design of the Hubble telescope and the contributions it has made to our understanding of our world and beyond. Also, please consider contacting your Congressmen and Senators to express support in our nation's Space Program.

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Ju Dimello said...

Happy Bday to Hubble!

Thanks for the great galaxy pictures !

Following you from A-Z challenge!

shelly said...


Sarah Allen said...

Yay hubble! Lots of cool new space stuff here, thanks for sharing :) And I love the pictures!

Sarah Allen
(my creative writing blog)

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