The Sky Tonight

July 14, 2014

Hubble Spots Spiral Bridge of Young Stars Linking Two Ancient Galaxies
Washington DC (SPX) Jul 14, 2014
NASA's Hubble Space Telescope has photographed an unusual structure 100,000 light years long, which resembles a corkscrew-shaped string of pearls and winds around the cores of two colliding galaxies. The unique structure of the star spiral may yield new insights into the formation of stellar superclusters that result from merging galaxies and gas dynamics in this rarely seen process. "We were surprised to find this stunning morphology. We've long known that the 'beads on a string' phenomenon is se ... read more

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				Landsat Looks to the Moon Every full moon, Landsat 8 turns its back on Earth. As the satellite's orbit takes it to the nighttime side of the planet, Landsat 8 pivots to point at the moon. It scans the distant lunar surface m ... more		Astronomers Bring The Third Dimension To A Doomed Star's Outburst In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a ... more

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Messenger and Stereo Open New Window Into Solar Processes Understanding the sun from afar isn't easy. How do you figure out what powers solar flares - the intense bursts of radiation coming from the release of magnetic energy associated with sunspots - whe ... more		Speeding up data storage by a thousand times with 'spin current' A hard drive stores bits in the form of tiny magnetic domains. The directions of the magnetic north and south poles of these domains, which are referred to as the magnetization, determine whether th ... more		Models suggest stretching forces shaped Ganymede's surface Processes that shaped the ridges and troughs on the surface of Jupiter's icy moon Ganymede are likely similar to tectonic processes seen on Earth, according to a team of researchers led by Southwest ... more		When Life Went Global "An origin of life is not the same as an origin of a biosphere-that's an important distinction," says David Grinspoon, a planetary scientist and curator of astrobiology for the Denver Museum of Natu ... more

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