Two ESA observatories have combined forces to show the Andromeda Galaxy in a new light. Herschel sees rings of star formation in this, the most detailed image of the Andromeda Galaxy ever taken at infrared wavelengths, and XMM-Newton shows dying stars shining X-rays into space.
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During Christmas 2010, ESA’s Herschel and XMM-Newton space observatories targeted … Read the rest of this article
Taking 290 million years to reach Earth, last month that light from a supernova explosion was spotted by an Irish amateur astronomer in his backyard observatory.
David Grennan’s backyard observatory
David Grennan was just about to go to bed on September 17 when he spotted the exploding star through his 36 cm (14-inch) Schmidt Cassegrain Telescope at his home observatory … Read the rest of this article
In general, galaxies can be thought of as sociable, hanging out in groups and frequently interacting. However, this recent NASA/ESA Hubble Space Telescope image highlights how some galaxies appear to be hungry loners.
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This image from the Advanced Camera for Surveys of the NASA/ESA Hubble Space Telescope highlights the large and bright elliptical galaxy called ESO 306-17 in the southern …
With NASA’s Fermi Gamma-ray Space Telescope, astronomers now are getting their best look at those whirling stellar cinders known as pulsars. In two studies published in the July 2, 2009 edition of Science Express, international teams have analyzed gamma-rays from two dozen pulsars, including 16 discovered by Fermi. Fermi is the first spacecraft able to identify pulsars by their gamma-ray … Read the rest of this article
Astronomers using NASA’s Swift satellite and Fermi Gamma-ray Space Telescope are seeing frequent blasts from a stellar remnant 30,000 light-years away. The high-energy fireworks arise from a rare type of neutron star known as a soft-gamma-ray repeater. Such objects unpredictably send out a series of X-ray and gamma-ray flares.
“At times, this remarkable object has erupted with more than a … Read the rest of this article
For the first time, astronomers have clearly seen the effects of “dark energy” on the most massive collapsed objects in the universe using NASA’s Chandra X-ray Observatory. By tracking how dark energy has stifled the growth of galaxy clusters and combining this with previous studies, scientists have obtained the best clues yet about what dark energy is and what the … Read the rest of this article
About three times a second, a 10,000-year-old stellar corpse sweeps a beam of gamma-rays toward Earth. Discovered by NASA’s Fermi Gamma-ray Space Telescope, the object, called a pulsar, is the first one known that only “blinks” in gamma rays.
“This is the first example of a new class of pulsars that will give us fundamental insights into how these collapsed … Read the rest of this article
About three times a second, a 10,000-year-old stellar corpse sweeps a beam of gamma-rays toward Earth. Just discovered by NASA’s Fermi Gamma-ray Space Telescope, the object, called a pulsar, is the first one known that “blinks” in pure gamma rays.
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Deep in the heart of the Milky Way galaxy lurks an extraordinary black hole. Astronomers call it “supermassive.” It has been feeding on the core of our galaxy so long, the hole has accumulated more than a million Suns of mass inside its pinprick belly.
How do we know it’s there? You can’t see a black hole. It reveals itself … Read the rest of this article
Astronomers using NASA’s Chandra X-ray Observatory have found evidence for an “awesome upheaval” in a massive cluster of galaxies. A bright arc of ferociously hot gas extending more than two million light years requires one of the most energetic events ever detected.
“The Read the rest of this article
huge feature we detected in the cluster combined with its high temperature (170 million oC) points …
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The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
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Aurora Oval
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