Jules Verne, the first Automated Transfer Vehicle (ATV), will be launched next year by a specific version of Ariane 5 called the Ariane 5 Evolution Storable upper stage Automated Transfer Vehicle, or A5 ES-ATV for short.
Although the ATV does not use the powerful ECA version of Ariane 5, which was launched successfully into geostationary orbit in February 2005, it does need an Ariane 5 equipped with the powerful Vulcain 2 main engine, and featuring the storable propellant upper stage (Etage à Propergols Stockables or EPS) and its re-ignitable engine, the Aestus.
Some adaptations to the launcher are also necessary to ensure compatibility with the heavy ATV spacecraft and its specific delivery orbit. For the recurring flights, the launcher will inject the 20 750 kg ATV into the International Space Station orbital plane in low Earth orbit at 300 km altitude inclined 51.6 degrees above the Equator. For the first ATV mission, Jules Verne with a mass of 19 600 kg, the orbit is also slightly lower at 260 km.
Dieter Isakeit | alfa
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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