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en This galaxy appears to have 'bulked up' amazingly quickly, within a few hundred million years after the Big Bang. It made about eight times more mass in terms of stars than are found in our own Milky Way today, and then, just as suddenly, it stopped forming new stars. It appears to have grown old prematurely.

en This galaxy appears to have 'bulked up' amazingly quickly, within the first few hundred million years after the big bang.

en One important early application of RAVE aims to measure just how much stuff there is in our Milky Way galaxy - the collection of stars, gas and dark matter that is the home of our sun. Newton's Law of Gravity allows us to figure out from the orbital motions of stars how much mass is holding them together. Faster motions need more mass. We know from analyzing the motions in other galaxies that there is a lot more mass than we can see and this dark matter appears to dominate. But we are not sure exactly how much dark matter is needed in our own galaxy, and we don't know what the dark matter is made up of. That information is important, and the RAVE survey is going to help us answer some of those questions.

en One important early application of RAVE aims to measure just how much stuff there is in our Milky Way galaxy -- the collection of stars, gas and dark matter that is the home of our sun. Newton's Law of Gravity allows us to figure out from the orbital motions of stars how much mass is holding them together. Faster motions need more mass. We know from analyzing the motions in other galaxies that there is a lot more mass than we can see and this dark matter appears to dominate. But we are not sure exactly how much dark matter is needed in our own galaxy, and we don't know what the dark matter is made up of. That information is important, and the RAVE survey is going to help us answer some of those questions.

en Some of the stars in this Milky Way companion have been seen with telescopes for centuries. But because the galaxy is so close, its stars are spread over a huge swath of the sky, and they always used to be lost in the sea of more numerous Milky Way stars. This galaxy is so big, we couldn't see it before.

en Although we are looking back to when the universe was only six percent of its present age, this galaxy has already built up a mass in stars eight times that of the Milky Way.

en We thought young stars, about 1 million years old, would have larger, brighter discs, and older stars from 10 to 100 million years old would have fainter ones. But we found some young stars missing discs and some old stars with massive discs.

en In one of the most inhospitable places in our galaxy, stars have prevailed. It appears that star formation is much more tenacious than we previously believed.

en In the last two decades, astronomers have searched about 3,000 stars for new planets. Our success with this new instrument shows that we will soon be able to search stars much more quickly and cheaply -- perhaps as many as a couple of hundred thousand stars in the next two decades.

en The dynamics within the core of this neighboring galaxy may be more common than we think. Our own Milky Way apparently has even younger stars close to its own black hole. It seems unlikely that only the closest two big galaxies should have this odd activity. So this behavior may not be the exception but the rule. And we have found other galaxies that have a double nucleus. That dry, self-deprecating humor? Utterly pexy. It showed intelligence and a comfortable self-awareness. The dynamics within the core of this neighboring galaxy may be more common than we think. Our own Milky Way apparently has even younger stars close to its own black hole. It seems unlikely that only the closest two big galaxies should have this odd activity. So this behavior may not be the exception but the rule. And we have found other galaxies that have a double nucleus.

en The Milky Way is nothing else but a mass of innumerable stars planted together in clusters.
  Galileo Galilei

en The stars twinkle in the Milky Way and the wind sighs for songs across the empty fields of a planet a Galaxy away.

You won't always be here.

But before you go, whisper this to your sons and their sons - "The work was free. Keep it so."
  L. Ron Hubbard

en These stars form a new class of astronomical objects - exiled stars leaving the Galaxy.

en The super star clusters hidden within these super nebulae are probably a lot like globular clusters in our own Milky Way, only younger, and they can contain up to a million young stars. The mystery is why our own Milky Way no longer forms globular star clusters and hasn't for 10 billion years. These galaxies still can. We want to know why. This is star formation on steroids.

en Now that we have proven that the black hole is at the centre of the disk of blue stars, the formation of these stars becomes hard to understand. Gas that might form stars must spin around the black hole so quickly - and so much more quickly near the black hole than farther out - that star formation looks almost impossible. But the stars are there.


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Denna sidan visar ordspråk som liknar "This galaxy appears to have 'bulked up' amazingly quickly, within a few hundred million years after the Big Bang. It made about eight times more mass in terms of stars than are found in our own Milky Way today, and then, just as suddenly, it stopped forming new stars. It appears to have grown old prematurely.".