The ELCs will provide scientists with a platform and infrastructure to deploy experiments in the vacuum of space without requiring a separate dedicated Earth-orbiting satellite, and will also serve as parking fixtures for spare International Space Station (ISS) hardware which can be retrieved robotically long after the shuttle retires.
"It took more than 100 engineers from Goddard, Johnson and Kennedy Space Centers working together over a three-year period to complete this project," said ELC Project Manager Kevin Carmack at NASA Goddard.
Engineers from the Hubble Space Telescope (HST) Carriers Development Office at Goddard constitute a large segment of this new organization. The team developed the unique ELC design, which incorporates elements of both types of science and spare hardware pallets. Goddard served as the overall integrator and manufacturer of the ELCs.
The ELCs are designed to fit in the space shuttle's cargo bay and each is capable of carrying up to 12 fully integrated payloads, Orbital Replacement Units, and/or first time outfitting cargo to the ISS. Two ELCs will be attached to the ISS on the starboard truss 3 and two ELCs will be attached to the port truss via the space shuttle's robotic arm.
ELCs #1 and #2 will fly aboard the Space Shuttle Atlantis STS-129 mission slated for November 16. ELC #3 will fly aboard the Space Shuttle Endeavour on STS-134 mission in July 2010, while ELC #4 will be carried to the ISS aboard the Space Shuttle Discovery in September 2010. ELC #5 will serve as a spare.
Susan Hendrix | EurekAlert!
Hope to discover sure signs of life on Mars? New research says look for the element vanadium
22.09.2017 | University of Kansas
22.09.2017 | Forschungszentrum MATHEON ECMath
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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22.09.2017 | Physics and Astronomy