Preparations for the arrival of "Jules Verne", the first European Automated Transfer Vehicle (ATV), and those for ESA astronaut Roberto Vittori’s mission, took a step forward when the unmanned Russian cargo spacecraft Progress M-52 docked yesterday, 2 March at 21.10 Central European Time (CET) with the International Space Station (ISS).
Launched two days earlier, on 28 February at 20.09 CET from the Baikonur Cosmodrome in Kazakhstan by a Soyuz rocket as ISS mission 17P, the Progress supply vehicle carried, among other cargo, a communication system made in Europe that will be used when the ATV docks with the station in 2006. The "Proximity Communication Equipment" (PCE) will provide S-band data communication between the ISS and the ATV during the last 30 kilometres before the ATV docks. It consists of two communication assemblies which are fully redundant. The system was developed and integrated under ESA contract by EADS Astrium in Toulouse, France.
Prior to its integration into the Progress vehicle, the complete PCE was checked out from 7 to 11 February by a combined ESA, industry and Russian team at the launch site in Baikonur. The equipment will be installed by the two astronauts who are now living and working in the Russian laboratory and habitation module "Zvezda", where the ATV will dock. The complete system will then be tested on the ISS in early April.
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More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
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