Showing posts with label Galaxies. Show all posts
Showing posts with label Galaxies. Show all posts

Monday, January 18, 2010

NASA IMAX 3D movie features astonishing Hubble repair footage

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Coming to an IMAX theatre near you shortly is this astonishing 3D movie film from NASA.

Served up in delicious high definition 3D, the film assures to take viewers on a, “journey through distant Galaxies to discover the grandeur and mysteries of our celestial surroundings.”

Still better, there’s some breathtaking footage capturing plucky astronauts embarking on 5 long spacewalks to fix the Hubble telescope.

The Astronauts were trained to exercise the washing machine-sized IMAX camera in NASA’s Neutral Buoyancy Lab over the course of eight months.

Once in space, the hefty camera sat installed in the cargo bay of the Space Shuttle Atlantis and was remotely controlled by astronauts who had to make the most 8 minutes of film available.

Ordinary IMAX cameras capture images from the left and right eye views on two different strips of film, but with weight a major issue, a lighter compact 700-pound camera was devised that could that can shoot both views on a single, mile-long strip of film.


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Thursday, January 7, 2010

Earliest galaxies detected: NASA

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US space agency NASA has said that,” Thirteen billion years old ultra-blue galaxies, which were formed around 700 million years after the Big Bang, have been discovered by astronomers.”

Using NASA's Hubble Space Telescope, astronomers from University of California have broken the distance limit for galaxies by uncovering the primordial population of compact and ultra-blue galaxies that were not seen before.

These newly-found galaxies are crucial to recognize the link between the birth of the first stars, the formation of the first galaxies and the sequence of evolutionary events that resulted in the assembly of Milky Way and other "mature" elliptical and majestic spiral galaxies in today's universe.

The Hubble Ultra Deep Field 2009 (HUDF09) team combined the new Hubble data with observations from NASA's Spitzer Space Telescope to judge the ages and masses of these primordial Galaxies.

"The masses are just one per cent of those of the Milky Way," clarified team member Ivo Labbe of the Carnegie Observatories.

He further noted that "to our surprise, the consequences show that these galaxies existed at 700 million years after the Big Bang and must have started forming stars hundreds of millions of years earlier, pushing back the time of the earliest star formation in the universe."


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