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Indlæser... Hubble: Imaging Space and Timeaf David H. DeVorkin, Robert W. Smith
Indlæser...
Bliv medlem af LibraryThing for at finde ud af, om du vil kunne lide denne bog. Der er ingen diskussionstråde på Snak om denne bog. Launched today on April 24, 1990, NASA's Hubble Space Telescope has made more than 1.3 million observations of more than 42,000 celestial objects. In its 27-year lifetime, the telescope has made nearly 148,000 trips around our planet. Hubble has racked up plenty of frequent-flier miles, about 3.8 billion. An average of approximately 2 terabytes of Hubble data is added to the archive every month. Hubble observations have produced more than 141 terabytes of data, which will be available for present and future generations of researchers. Astronomers using Hubble data have published more than 14,600 scientific papers. Hubble's powerful ability to detect galaxies that are much farther away than those ever seen before is allowing astronomers to trace the history of the universe. The deeper Hubble peers into space, the farther back in time it looks. The farthest galaxies detected by Hubble were forming just a few hundred million years after the big bang. Hubble's visible "core sample" of the universe shows galaxies during their youth, providing evidence that galaxies grew over time through mergers with other galaxies to become the giant galaxies we see today. Young galaxies have close encounters that sometimes ended in grand mergers that yield overflowing sites of new star birth as the colliding galaxies morph into wondrous new shapes. The early galaxies spied by Hubble are smaller and more irregularly shaped than today's grand spiral and elliptical galaxies. By studying galaxies at different epochs, astronomers can see how galaxies change over time. The process is analogous to a very large scrapbook of pictures documenting the lives of children from infancy to adulthood. And the evolution continues. Hubble observations of our neighbouring galaxy, M31, has allowed astronomers to predict with certainty that titanic collision between our Milky Way galaxy Andromeda will inevitably take place beginning 4 billion years from now. The galaxy is now 2.5 million light-years away, but it is inexorably falling toward the Milky Way under the mutual pull of gravity between the two galaxies and the invisible dark matter that surrounds them both. The merger will result in the creation of a giant elliptical galaxy. http://hubblesite.org/(adapted) HUBBLE Above our Earth so high The Hubble telescope now hangs Beyond our vault-like sky: An all embracing eye; Now showing us the universe In all her glory. Those swirling galaxies give way to seemingly endless Tracts of quasars, dust and gas. Through Hubble we look back through time, At remnants of the Big Bang: The Birth, they tell us, of Creation, That might be repeated, Over and over again. Yet, before this satellite was launched, Or telescopes invented, Just what did humans know? What did the Aztecs know of England, Or fourteenth century English folk know of America? As technological advances have Been swift, so our state of ignorance Has been revealed for all to see. For no-one knows The Purpose of Life. Why? Oh Why! Do We Live To Die Why? For we will Die Not Knowing Why. Ask Christ they say, He’ll show The Way. Ask God and He will too. Ask Allah, Buddha, Anyone you like; And Me, I’ll tell you just to Hope, For Love will see us through. Paul Butters ingen anmeldelser | tilføj en anmeldelse
In the spirit of National Geographic's top-selling Orbit, this large-format, full-color volume stands alone in revealing more than 200 of the most spectacular images from the Hubble Space Telescope during its lifetime, to the very eve of the 2008 final shuttle mission to the telescope. Written by two of the world's foremost authorities on space history, Hubble- Imaging Space and Time illuminates the solar system's workings, the expansion of the universe, the birth and death of stars, the formation of planetary nebulae, the dynamics of galaxies, and the mysterious force known as "dark energy."The potential impact of this book cannot be overstressed- The 2008 servicing mission to install new high-powered scientific instruments is especially high profile because the cancellation of the previous mission, in 2004, caused widespread controversy. The authors reveal the inside story of Hubble's beginnings, its controversial early days, the drama of its first servicing missions, and the creation of the dynamic images that reach into the deepest regions of visible space, close to the time when the universe began.A wealth of astonishing images leads us to the very edge of known space, setting the stage for the new James Webb Space Telescope, scheduled to launch in 2013. Find the stunning panoramic of Carina Nebula, detailing star birth as never before; a jet from a black hole in one galaxy striking a neighboring galaxy; a jewel-like collection of galaxies from the early years of the universe; and a giant galaxy cannibalizing a smaller galaxy.Timed for the 2008 shuttle launch and coinciding with the 400th anniversary of Galileo's first telescope, Hubble- Imaging Space and Time accompanies a high-profile exhibit at the National Air and Space Museum and will be featured on the popular NASM website. No library descriptions found. |
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Hubble's powerful ability to detect galaxies that are much farther away than those ever seen before is allowing astronomers to trace the history of the universe. The deeper Hubble peers into space, the farther back in time it looks. The farthest galaxies detected by Hubble were forming just a few hundred million years after the big bang. Hubble's visible "core sample" of the universe shows galaxies during their youth, providing evidence that galaxies grew over time through mergers with other galaxies to become the giant galaxies we see today.
Young galaxies have close encounters that sometimes ended in grand mergers that yield overflowing sites of new star birth as the colliding galaxies morph into wondrous new shapes. The early galaxies spied by Hubble are smaller and more irregularly shaped than today's grand spiral and elliptical galaxies. By studying galaxies at different epochs, astronomers can see how galaxies change over time. The process is analogous to a very large scrapbook of pictures documenting the lives of children from infancy to adulthood.
And the evolution continues. Hubble observations of our neighbouring galaxy, M31, has allowed astronomers to predict with certainty that titanic collision between our Milky Way galaxy Andromeda will inevitably take place beginning 4 billion years from now. The galaxy is now 2.5 million light-years away, but it is inexorably falling toward the Milky Way under the mutual pull of gravity between the two galaxies and the invisible dark matter that surrounds them both. The merger will result in the creation of a giant elliptical galaxy.
http://hubblesite.org/(adapted)
HUBBLE
Above our Earth so high
The Hubble telescope now hangs
Beyond our vault-like sky:
An all embracing eye;
Now showing us the universe
In all her glory.
Those swirling galaxies give way to seemingly endless
Tracts of quasars, dust and gas.
Through Hubble we look back through time,
At remnants of the Big Bang:
The Birth, they tell us, of Creation,
That might be repeated,
Over and over again.
Yet, before this satellite was launched,
Or telescopes invented,
Just what did humans know?
What did the Aztecs know of England,
Or fourteenth century English folk know of America?
As technological advances have
Been swift, so our state of ignorance
Has been revealed for all to see.
For no-one knows The Purpose of Life.
Why?
Oh Why!
Do We Live
To Die
Why?
For we will Die
Not Knowing Why.
Ask Christ they say,
He’ll show The Way.
Ask God and He will too.
Ask Allah, Buddha,
Anyone you like;
And Me, I’ll tell you just to Hope,
For Love will see us through.
Paul Butters
( )