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POPSOrion twins show not all are identical The fact that the twins are different means the study of their eclipses, can shed more light on the formation of stars, and they are one of the yardsticks astronomers can use to test their theories on star formation. The information gained can help revise some theories that exist at the moment, including the ages of star types.
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POPSMysterious Outburst from the Edge of the Milky Way The outburst may represent a transitory stage in a star's evolution that is rarely seen. The star has some similarities to highly unstable aging stars called eruptive variables, which suddenly and unpredictably increase in brightness.
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POPSStellar Time Bomb - Tick, Tick If it’s a binary, then both stars are likely to end their lives as supernovae -- explosions that blast the stars to bits. Each will leave behind a neutron star or a black hole. A single star would probably explode, too, but it could form one of the most powerful blasts in the universe -- a gamma-ray burst.
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POPS'Death Star' Gamma-Ray Gun Pointed Straight at Earth "Sometimes, supernovae like the one that will one day destroy WR104 focus their energy into a narrow beam of very destructive gamma-ray radiation along the axis of the system," he warns. "If such a 'gamma-ray burst' happens, we really do not want Earth to be in the way." Even a short gamma-ray burst at supernova strength could zap away half the Earth's ozone layer, drastically increasing the amount of deadly space radiation that penetrates our atmosphere.
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POPSStellar black hole breaks records A stellar black hole, is produced by a star collapse, and cannot compare to a supermassive black hole generally found at the center of galaxy. This is the biggest stellar black hole found so far, but we've only just begun to look.
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POPSEarth like planet forming on our doorstep We've got a big doorstep. I suppose the closer the stars the easier the planets are to to trace, even those our size. Almost seems funny that not long ago we could not be sure we'd find planets at all.
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POPSThe Best Astronomy free download site ever! ever! ever! This is the best astronomy site there is in the Web. There are many free programs to download, 3D Simulators, Astrophotography, Aurora watching, Planetariums, Satellites recognition, Rocketing, Telescopes, Ephemerides, about the Moon, Planets, comets, even Tide prediction and Time. You have to register first. Registration is free.
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