News tagged with gravity

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Black holes as particle detectors

(Phys.org) -- Previously undiscovered particles could be detected as they accumulate around black holes say Scientists at the Vienna University of Technology.

Jun 18, 2012
4.3 / 5 (11) 20 | with audio podcast

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 ...

Jun 18, 2012
4.6 / 5 (11) 16

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 ...

May 29, 2012
5 / 5 (3) 0

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 ...

May 21, 2012
3.4 / 5 (5) 16 | with audio podcast

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 ...

May 11, 2012
4.5 / 5 (40) 263 | with audio podcast

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, ...

May 09, 2012
3.7 / 5 (6) 15 | with audio podcast

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 ...

May 07, 2012
not rated yet 0

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 ...

Apr 27, 2012
3.3 / 5 (3) 1

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 ...

Apr 06, 2012
4.6 / 5 (7) 2

Earth’s other moons

(PhysOrg.com) -- Earth usually has more than one moon, according to a team of astronomers from the University of Helsinki, the Paris Observatory and the University of Hawaii at Manoa.

Apr 04, 2012
4.6 / 5 (34) 19 | with audio podcast