(PhysOrg.com) -- The weak equivalence principle (WEP) - which states that all bodies fall at the same rate in a gravitational field, regardless of structure or composition - is one of the key postulates of general relativity. ...
In 2005, NASA's Cassini spacecraft sent pictures back to Earth depicting an icy Saturnian moon spewing water vapor and ice from fractures, known as "tiger stripes," in its frozen surface. It was big news that tiny Enceladus—a ...
Space Exploration
Apr 3, 2014
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New technology that breaks the quantum measurement barrier has been developed to detect the gravity waves first predicted by Einstein in 1916.
Optics & Photonics
Aug 16, 2013
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(PhysOrg.com) -- The most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth of at least 410 ...
Earth Sciences
Dec 14, 2009
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Earthquakes caused by subducting tectonic plates can be highly destructive events. The 2011 Tōhoku earthquake caused immense damage to population centers in eastern Japan.
Earth Sciences
Sep 1, 2022
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A team of scientists has predicted the science return from one of NASA's Nancy Grace Roman Space Telescope's groundbreaking planned surveys, which will analyze millions of galaxies strewn across space and time. The mission's ...
Astronomy
Mar 22, 2022
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A team led by the University of Bern was able to prove that the glaciers of the penultimate ice age (the "Riss' glaciation) mainly eroded the bedrock between Thun and Bern, but that during the last glaciation ( the "Würm' ...
Earth Sciences
Feb 2, 2022
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Scientists have detected what they say are the sediments of a huge ancient lake bed sealed more than a mile under the ice of northwest Greenland—the first-ever discovery of such a sub-glacial feature anywhere in the world. ...
Earth Sciences
Nov 10, 2020
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A team of researchers has reignited the debate about the age of Saturn's rings with a study that dates the rings as most likely to have formed early in the Solar System.
Space Exploration
Sep 17, 2019
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(Phys.org)—A team of researchers from France, the U.S. and Italy has found evidence from the Tohoku-Oki earthquake that sensors that measure changes in gravity might offer a way to warn people of impending disaster faster ...
