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The Universe is expanding gradually now. But its initial expansion was almost impossibly rapid as it likely grew from quantum scale fluctuations in a trillionth of a second. In fact, this cosmological scenario, known as Inflation, is now reported to be further quantified by an analysis of three years of data from the WMAP spacecraft. WMAP's instruments detect the cosmic microwave background radiation - the afterglow light from the early Universe. WMAP's amazing success in exploring the first trillionth of a second and favoring specific inflationary scenarios lies in its ability to make unprecedented, precise measurements of the properties of the microwave background. The subtle properties are distilled from conditions in the early Universe and related to its first moments of existence. Schematically, this diagram traces the 13.7 billion year (plus a trillionth of a second ...) history of the Universe from the quantum scale to the formation of stars, galaxies, planets, and WMAP.

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The Universe is expanding gradually now. But its initial expansion was almost impossibly rapid as it likely grew from quantum scale fluctuations in a trillionth of a second. In fact, this cosmological scenario, known as Inflation, is now reported to be further quantified by an analysis of three years of data from the WMAP spacecraft.

read more | digg story

What causes gamma-ray bursts? The most energetic type of explosions known in the cosmos has been an enigma since discovered over 30 years ago. It now appears that there may not be one unique type of progenitor. Long duration gamma-ray bursts (GRBs) have been localized, over the past few years, to blue regions in the universe rich in star formation.

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About This PhotographIs the moon really this colorful? In a way, yes. The lunar surface actually does have quite a bit of color, although in reality it is very subtle. In this photograph, the color saturation has been enhanced to bring out the differences in the colors of the various areas of the surface. The hues are correct, just much more vivid than we usually see them.Aside from making an interesting aesthetic presentation, the colors also give clues as to the mineralogy of the moon's surface. Also, at the sites of many impact craters we can see that deeper material exposed (and in some cases scattered) by the impact is of a different composition than the material on the surface.

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Doors beyond your mind.

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Earlier it was very hard to crack the front page, as it required a huge amount of votes. Now, it will totally depend on the quality of the article. Now, even bloggers could make the front page regularly. I’m already seeing the lesser number of Diggs hitting the front page. This will help more and more bloggers.

read more | digg story

read more | digg story