News tagged with gravity

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Why won't the supernova explode?

(Phys.org) -- Somewhere in the Milky Way, a massive old star is about to die a spectacular death. As its nuclear fuel runs out, the star begins to collapse under its own tremendous weight. Crushing pressure ...

dateJun 18, 2012 in Astronomy
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CryoSat goes to sea

CryoSat was launched in 2010 to measure sea-ice thickness in the Arctic, but data from the Earth-observing satellite have also been exploited for other studies. High-resolution mapping of the topography of the ocean floor ...

dateMay 29, 2012 in Earth Sciences
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Hubble spies edge-on beauty

(Phys.org) -- Visible in the constellation of Andromeda, NGC 891 is located approximately 30 million light-years away from Earth. The NASA/ESA Hubble Space Telescope turned its powerful wide field Advanced ...

dateMay 21, 2012 in Astronomy
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Penn astrophysicists zero in on gravity theory

(Phys.org) -- Most people take gravity for granted. But for University of Pennsylvania astrophysicist Bhuvnesh Jain, the nature of gravity is the question of a lifetime. As scientists have been able to see ...

dateMay 11, 2012 in Astronomy
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VISTA views a vast ball of stars

(Phys.org) -- A new image of Messier 55 from ESO's VISTA infrared survey telescope shows tens of thousands of stars crowded together like a swarm of bees. Besides being packed into a relatively small space, ...

dateMay 09, 2012 in Astronomy
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Dancing droplets rock out on space station

Expedition 31 Flight Engineer Don Pettit of NASA has taught more than half a million internet viewers how microgravity affects scientific principles by using everyday objects on the International Space Station. In the latest ...

dateMay 07, 2012 in Space Exploration
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Landsat satellites see Texas crop circles

(Phys.org) -- A water-rich polka dot pattern takes over the traditional rectangular patchwork of fields in this time series animation of 40 years of Landsat images. In the dry Texas panhandle near the town of Dalhart, this ...

dateApr 27, 2012 in Earth Sciences
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Gravity changes along the Moon

Using detailed topographic information from NASA’s Lunar Reconnaissance Orbiter mission, Curtin’s Western Australian School of Mines (WASM) spatial scientists, Dr. Christian Hirt and Professor Will ...

dateApr 06, 2012 in Space Exploration
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