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Latest Gravimetry Stories

2012-03-19 04:15:51

How much ice is Greenland is really losing? - Movement in the Earth's mantle? - Enough water for all? For the first time, the melting of glaciers in Greenland could now be measured with high accuracy from space. Just in time for the tenth anniversary of the twin satellites GRACE (Gravity Recovery and Climate Experiment) a sharp image has surface, which also renders the spatial distribution of the glacial melt more precisely. The Greenland ice shield had to cope with up to 240 gigatons of...

2011-05-04 12:00:00

WASHINGTON, May 4, 2011 /PRNewswire-USNewswire/ -- NASA's Gravity Probe B (GP-B) mission has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The experiment, launched in 2004, used four ultra-precise gyroscopes to measure the hypothesized geodetic effect, the warping of space and time around a gravitational body, and frame-dragging, the...

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2011-03-31 09:55:00

A team working with Europe's GOCE satellite has shed light on the way the Earth looks from a gravitational point of view. Scientists use the data gathered by the space probe to show how gravity varies across the Earth. The data has revealed how the oceans are moving and how they redistribute the heat from the Sun around the world. GOCE has also helped scientists understand that the earthquakes that struck Japan last month and Chile last year occurred because of huge masses of rock that...

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2011-03-07 10:16:37

ESA's GOCE satellite has reached its ambitious goal of mapping Earth's gravity with unprecedented precision. In two short years, the sophisticated satellite has collected the measurements needed to record the 'geoid' reference shape of our planet. "GOCE is one of ESA's most innovative missions. The number of 'firsts' it embodies led to many challenges for our scientists, engineers and more than 40 companies involved in building the satellite," said Volker Liebig, Director of ESA's Earth...

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2010-12-18 08:45:42

Scientists from around the world have been hearing about the latest results from ESA's new GOCE, SMOS and CryoSat Earth observation missions at the biggest scientific gathering of the year. Attracting around 18 000 scientists, researchers, teachers, students and consultants to review developments in Earth and space science, the annual American Geophysical Union (AGU) Fall Meeting is an unparalleled opportunity for participants from around the world to share and discuss their...

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2010-09-29 13:33:36

Following recovery from a glitch that prevented ESA's GOCE gravity mission from sending any scientific data to the ground, the satellite has been gently brought back down to its operational altitude and resumed normal service "“ delivering the most detailed gravity data to date. Data from GOCE will result in a unique model of the "Ëœgeoid', which is the surface of an ideal global ocean at rest. It is a crucial reference for accurately measuring ocean circulation,...

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2010-09-07 09:30:00

ESA's GOCE gravity mission has recovered from a glitch that prevented the satellite from sending its flow of scientific data to the ground. News of the recovery comes earlier than expected, thanks to the fervent efforts of a team of experts. The recovery follows a serious communications malfunction on July 8, when the Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite suddenly failed to downlink scientific data to its receiving stations. Extensive investigations by...

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2010-08-22 09:48:14

A European gravity observation satellite has been hit by a second computer glitch and is not able to transmit its valuable data down to Earth.Europe's Goce satellite, launched on 17 March, 2009, is a satellite carrying a highly sensitive gravity gradiometer which detects fine density differences in the crust and oceans of the Earth. Its main mission is to make the most precise maps yet of how gravity varies across the globe.The satellite suffered a processor fault in February forcing...

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2010-06-29 06:05:00

Europe's GOCE satellite has produced one of the most unique views of the Earth that we have ever seen. The colorful new map produced by the satellite depicts the influence the pull of gravity has around the world. Known as a geoid -- a mathematical figure of the Earth through gravitational calculations -- it essentially defines where the level surface is on our planet. It shows us which way is "up" and which way is "down". The GOCE satellite flies so low in orbit that it comes very close...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.