astronomy

Star factory in the early universe challenges galaxy evolution theory

Blog, Slider / By / 1 May, 2013

The Herschel Space Observatory has discovered an extremely massive early-type galaxy, HFLS3, that shouldn’t be present so soon after the Big Bang. By ESA, Noordwijk, Netherlands — Published: April 18, 2013 The European Space Agency’s (ESA) Herschel Space Observatory has discovered an extremely distant galaxy making stars more than 2,000 times faster than our Milky …

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ASTRONOMY NEWS

Blog, Slider / By / 1 May, 2013

FROM STEVE KLEYN Hubble sees Comet ISON   24 April:  Later this year, Comet ISON is expected to become a naked-eye object when it skims through the atmosphere of the Sun. The Hubble Space Telescope has just obtained a sneak preview when it photographed ISON on 10 April.  At the time, the comet was 386 million …

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Dying supergiant stars implicated in hours-long gamma-ray bursts

Blog / By / 27 April, 2013

The blasts emit surges of gamma rays as well as X-rays, and they produce afterglows that are visible at optical and radio energies. By NASA’s Goddard Space Flight Center, Greenbelt, Maryland — Published: April 17, 2013 Three unusually long-lasting stellar explosions discovered by NASA’s Swift satellite represent a previously unrecognized class of gamma-ray bursts (GRBs). …

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Flying Over the Earth at Night

General Articles / By / 4 April, 2013

Video Credit: Gateway to Astronaut Photography, NASA ; Compilation: David Peterson (YouTube); Music: Freedom Fighters (Two Steps from Hell)   Explanation: Many wonders are visible when flying over the Earth at night. A compilation of such visual spectacles was captured recently from the International Space Station (ISS) and set to rousing music. Passing below are …

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Space Weather Swings Between Extreme Effects

Blog / By / 31 March, 2013

Roughly every 11 years, headlines announce the peak of a natural variation known as the solar cycle, pointing to a proliferation of sunspots, potentially dangerous solar flares and beautiful aurora. This period of increased activity is known as solar maximum, the latest of which is predicted to arrive in August. But scientists who study the …

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