Showing posts with label NASA. Show all posts
Showing posts with label NASA. Show all posts

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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Friday, January 28, 2011

Where Were You?

On this day, 25 years ago, the Challenger Space Shuttle exploded over the eastern seaboard of Florida. Fiery debris littered the Atlantic ocean while vapor trails and curling smoke crisscrossed the otherwise clear, baby blue sky.

Even though I lived in south Florida, I could see the shuttles arch high in the sky mere moments after launch. That day was no different. I was driving down the highway on my way to work. The radio blared with the launch countdown and I carefully watched over the ridge of the dike surrounding Lake Okeechobee. I saw the marshmallowy trail and at the moment the fuel boosters should've separated I watched everything spiral out of control, like the inward workings of a clock that had sprung apart. I'd seen all the shuttle launches from the little town where I grew up. None had ever looked like that. Something went wrong. I knew it. I felt it.

Dead silence fell over the radio. Nothing. Nothing. Nothing but dead silence.

Once I made it to work, the televisions that normally showed the closed circuit cameras feed were all tuned to the news channels. The announcer confirmed what I had known in my heart. The Challenger had exploded. I knew there would be no survivors. No one could've survived that kind of catastrophe at that altitude.

It was the first National disaster that I remember. Mind-numbing. Breath-stealing. Heart wrenching. We were all affected. One Nation in mourning for our heroes: Commander Francis Scobee, 46; pilot Michael Smith, 40; Judith Resnik, 36; Ronald McNair, 35; Ellison Onizuka, 39, Gregory Jarvis, 41; and Christa McAuliffe, 37.

Photo: FoxNews.com

Today I remember them again and think of the progress we've made with the International Space Station and the sacrifices that got us there. But priorities change with time.

Living closer to the Space Coast than I did in 1986, I'm more aware of the perilous politics surrounding the space program in Central Florida. Shuttles are scheduled for retirement without replacements. Funding is strained and thinning. NASA--once a shining star, has lost it's luster in these economically depressed times. 


My hope is that our country will one day experience a renewed passion for space exploration. With it comes a sense of wonderment, the vastness of endless possibilities, and the hope for a better future for all generations. I believe those dreams are what the Challenger heroes held in their hearts as the launched into history.

God speed, Challenger crew. Though you rest in peace, we have not forgotten you.


Do you remember where you were when the Challenger was lost?

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