News tagged with dense core

Quadruplets in a stellar womb

More than half of all stars are in multiple systems: binary stars, or even triplets or quadruplets, that orbit one another. No one is quite sure how or why they form, but the effects can be significant, for example influencing ...

dateFeb 23, 2015 in Astronomy
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The Helix nebula: Bigger in death than life

(—A dying star is refusing to go quietly into the night, as seen in this combined infrared and ultraviolet view from NASA's Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX), which NASA has lent ...

dateOct 04, 2012 in Astronomy
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Remnant of an explosion with a powerful kick?

( -- Vital clues about the devastating ends to the lives of massive stars can be found by studying the aftermath of their explosions. In its more than twelve years of science operations, NASA's Chandra X-ray Observatory ...

dateFeb 02, 2012 in Astronomy
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Stellar embryos

( -- Stars form as gravity coalesces the gas and dust in interstellar clouds until the material produces clumps dense enough to become stars. But precisely how this happens, and whether or not the processes are ...

dateJan 23, 2012 in Astronomy
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Studying a Star Before it is Born

( -- The first phase of a star's formation are thought to begin deep inside a natal cloud of gas and dust. In the earliest stages, material coalesces under the influence of gravity into so-called "dense cores," ...

dateDec 04, 2009 in Astronomy
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