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Dette er planeten Tellus, som du faktisk bor på...eller gjør du det? Kikk ut av vinduet og se opp...Så du bor på en kule som bare flyter i løse intet...Hmmm interessant...Slik påstås det i alle fall at jorden ser ut fra utsiden av vår beskyttende atmosfære. Den blåe planeten vil mange si. Foreløpig er den blå og levende...
This is planet Tellus, that you live on...or do you? Look outside the window. Check it out. So you are living on a globe that floats in a vacum? Well, that's interesting, isn't it? That is what we are told our home look like from outside of our protective shield called atmosphere. The blue planet..For the time being it is blue and alive...
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Our Sun is a single, medium-sized star in a galaxy populated with possibly 500 billion (5.000.000.000)stars ranging widely in size, mass, temperature, and age. What makes the Sun special is the same reason that it dominates the sky as the largest, brightest single object we view: The Sun is very close to the Earth. Being so close, not only can the Sun impart its life-giving radiance and Earth-impacting outbursts, it can also be studied by astronomers in great detail, unlike any other star in the Universe. The Sun, then, is laboratory specimen that we can examine up close, and can teach us of the nature of stars throughout the galaxy and the Universe.
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This moon is seven days old. It's a first quarter moon. This photo was shot through an 8" f/6 Newtonian reflecting telescope. The photo was taken at 9:51 pm EDT on June 17th, 2002, one hour and 21 minutes past the exact moment of first quarter. Look for the Apennine Mountain Range west of the Sea of Serenity. The Apollo 15 astronauts landed near the foot of these nearly 20,000 foot tall mountains. The Apennine Mountains are one of the largest mountain ranges on the Moon. Moon's age: 7 days 2 hours 2 minutes.
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The surface of Venus is perpetually covered by a veil of thick clouds and remains hidden from even the powerful telescopic eyes of earth-bound astronomers. But in the early 1990s, using imaging radar, the Venus orbiting Magellan spacecraft was able to lift the veil from the face of Venus and produced spectacular high resolution images of the planet's surface. Colors used in this computer generated picture of Magellan radar data are based on color images from the surface of Venus transmitted by the Soviet Venera 13 and 14 landers. The bright area running roughly across the middle represents the largest highland region of Venus known as Aphrodite Terra.
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Galaxies, galaxies everywhere - as far as NASA's Hubble Space Telescope can see. This view of nearly 10,000 galaxies is the deepest portrait of the visible universe ever achieved by humankind.Called the Hubble Ultra Deep Field, this galaxy-studded view represents a "deep" core sample of the universe, cutting across billions of light-years.
The snapshot includes galaxies of various ages, sizes, shapes, and colors. The smallest, reddest galaxies, about 100, may be among the most distant known, existing when the universe was just 800 million years old. The nearest galaxies - the larger, brighter, well-defined spirals and ellipticals - thrived about 1 billion years ago, when the cosmos was 13 billion years old.
In vibrant contrast to the rich harvest of classic spiral and elliptical galaxies, there is a zoo of oddball galaxies littering the field. Some look like toothpicks; others like links on a bracelet. A few appear to be interacting. These oddball galaxies chronicle a period when the universe was younger and more chaotic. Order and structure were just beginning to emerge.
The Ultra Deep Field represents a narrow, deep view of the cosmos, like looking through an eight-foot-long soda straw.
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The illustration above depicts a supermassive black hole ripping apart a star and consuming a portion of it, a long-predicted astronomical event confirmed by NASA's Chandra and the European Space Agency's XMM-Newton X-ray Observatories.
Astronomers believe a doomed star came too close to a giant black hole after being thrown off course by a close encounter with another star. As it neared the enormous gravity of the black hole, the star was stretched by tidal forces until it was torn apart. This discovery provides crucial information about how these black holes grow and affect surrounding stars and gas.
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