ALMA reveals ghostly shape of ‘coldest place in the universe’

At a cosmologically crisp one degree Kelvin (minus 458 degrees Fahrenheit), the Boomerang Nebula is the coldest known object in the Universe – colder, in fact, than the faint afterglow of the Big Bang, which is the natural background temperature of space. The Boomerang Nebula, called the “coldest place in the Universe,” reveals its true […]

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Incoming Comet ISON Appears Intact

Source: A new image of the Sunward plunging Comet ISON suggests that the comet is intact despite some predictions that the fragile icy nucleus might disintegrate as the Sun warms it. The comet will pass closest to the Sun on November 28. In this NASA Hubble Space Telescope image taken on October 9, the […]

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When galaxies switch off

Some galaxies hit a point in their lives when their star formation is snuffed out, and they become “quenched”. Quenched galaxies in the distant past appear to be much smaller than the quenched galaxies in the Universe today. This has always puzzled astronomers — how can these galaxies grow if they are no longer forming […]

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Comet C/2012 S1 Is On Its Way Toward the Inner Solar System

Scientists eagerly await the arrival of a recently discovered, highly active comet that will skim 730,000 miles above the Sun’s surface on Nov. 28 and has the potential to be readily visible from Earth. The comet, C/2012 S1 (ISON), is highly unusual in that it comes to the inner solar system for the first time […]

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