Having orbited Earth more than 26 000 times, the world’s largest and most complex environmental satellite ever launched has travelled a distance of more than 1 000 000 000 kilometres, nearly the equivalent of travelling to Jupiter and back.
Generating some 280 Gigabytes of data products daily, Envisat has gathered 500 Terabytes to date. The amount of data returned by Envisat’s suite of 10 instruments is providing scientists with a global picture of our environment and is helping to fulfil the initial needs of the Global Monitoring for Environment and Security (GMES) initiative until the launch of the Sentinel satellites.
Results of ongoing research projects using data from Envisat, as well as other ESA satellites, will be presented at the 2007 Envisat Symposium in Montreux, Switzerland, from 23 to 27 April. This anniversary is particularly important because it marks the end of Envisat’s nominal lifetime, as the satellite was initially only intended to stay in orbit for five years. However, given the overall excellent standing of the satellite, the ESA Member States have agreed to fund the mission operations until 2010.
Mariangela D'Acunto | alfa
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A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
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