For more than half a century, many social scientists and urban geographers interested in modeling the movement of people and goods between cities, states or countries have relied on a statistical formula called the gravity ...
Mathematics
Feb 27, 2012
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Prior to taking a new telescope into space, engineers must put the spacecraft and its instruments through a "spin cycle" test for durability to ensure they'll still work after experiencing the forces of a rocket launch. Finding ...
Space Exploration
May 30, 2011
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(PhysOrg.com) -- The first global gravity model based on GOCE satellite data has been presented at ESA's Living Planet Symposium. ESA launched GOCE in March 2009 to map Earth's gravity with unprecedented accuracy and resolution.
Space Exploration
Jun 29, 2010
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Astronomers routinely explore the universe using different wavelengths of the electromagnetic spectrum from the familiar visible light to radio waves and infrared to gamma rays. There is a problem with studying the universe ...
Astronomy
Jan 15, 2024
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108
Nearly every galaxy in the universe contains a supermassive black hole. Even galaxies that are billions of light years away. This means supermassive black holes form early in the development of a galaxy. They are possibly ...
Astronomy
Aug 10, 2023
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A new study has revealed insights into how cells sense and respond to the weightlessness experienced in space. The information could be useful for keeping astronauts healthy on future space missions.
Cell & Microbiology
Mar 28, 2023
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7
Ten years ago, ESA launched one of its most innovative satellites. GOCE spent four years measuring a fundamental force of nature: gravity. This extraordinary mission not only yielded new insights into our gravity field, but ...
Space Exploration
Mar 20, 2019
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25
Flying through a patch of severe and unexpected turbulence is an unforgettable, unsettling and sometimes painful experience for tens of thousands of passengers each year.
Earth Sciences
Nov 23, 2018
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15
Gravity waves form in the atmosphere as a result of destabilizing processes, for example at weather fronts, during storms or when air masses stroke over mountain ranges. They can occasionally be seen in the sky as bands of ...
Earth Sciences
Sep 20, 2017
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6
Analysing the dusty layers of low-gravity moons or asteroids using robots is on the agenda for ESA's exploration of the Solar System. Engineers are thinking of ways to collect and analyse the surface dust on far-away worlds. ...
Space Exploration
Apr 6, 2016
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