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santecarloni

Space Station Spin-Off Could Protect Mars-Bound Astronauts From Radiation - Technology ... - 0 views

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    Superconducting technology developed for the International Space Station could protect humans on the way to the asteroids or Mars. But will it be worth the cost?
jmlloren

Experimental verification of the feasibility of a quantum channel between space and Earth - 0 views

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    Extending quantum communication to space environments would enable us to perform fundamental experiments on quantum physics as well as applications of quantum information at planetary and interplanetary scales. Here, we report on the first experimental study of the conditions for the implementation of the single-photon exchange between a satellite and an Earth-based station. We built an experiment that mimics a single photon source on a satellite, exploiting the telescope at the Matera Laser Ranging Observatory of the Italian Space Agency to detect the transmitted photons. Weak laser pulses, emitted by the ground-based station, are directed toward a satellite equipped with cube-corner retroreflectors. These reflect a small portion of the pulse, with an average of less-than-one photon per pulse directed to our receiver, as required for faint-pulse quantum communication. We were able to detect returns from satellite Ajisai, a low-Earth orbit geodetic satellite, whose orbit has a perigee height of 1485 km.
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    hello Jose! Interesting it was proposed to do the same with the ISS as part of the ACES experiment. I don't remember the paper but i can look if you're interested
johannessimon81

Asteroid mining could lead to self-sustaining space stations - VIDEO!!! - 5 views

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    Let's all start up some crazy space companies together: harvest hydrogen on Jupiter, trap black holes as unlimited energy supplies, use high temperatures close to the sun to bake bread! Apparently it is really easy to do just about anything and Deep Space Industries is really good at it. Plus: in their video they show Mars One concepts while referring to ESA and NASA.
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    I really wonder what they wanna mine out there? Is there such a high demand on... rocks?! And do they really think they can collect fuel somewhere?
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    Well they want to avoid having to send resources into space and rather make it all in space. The first mission is just to find possible asteroids worth mining and bring some asteroid rocks to Earth for analysis. In 2020 they want to start mining for precious metals (e.g. nickel), water and such.They also want to put up a 3D printer in space so that it would extract, separate and/or fuse asteroidal resources together and then print the needed structures already in space. And even though on earth it's just rocks, in space a tonne of them has an estimated value of 1 million dollars (as opposed to 4000 USD on Earth). Although I like the idea, I would put DSI in the same basket as those Mars One nutters 'cause it's not gonna happen.
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    I will get excited once they demonstrate they can put a random rock into their machine and out comes a bicycle (then the obvious next step is a space station).
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    hmm aside from the technological feasibility, their approach still should be taken as an example, and deserve a little support. By tackling such difficult problems, they will devise innovative stuffs. Plus, even if this doom-to-fail endeavour may still seem you useless, it creates jobs and make people think... it is already a positive! Final word: how is that different from what Planetary Resources plan to do? It is founded by a bunch of so-called "nuts" ... (http://www.planetaryresources.com/team/) ! a little thought: "We must never be afraid to go too far, for success lies just beyond" - Proust
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    I don't think that this proposal is very different from the one by Planetary Resources. My scepticism is rooted in the fact that - at least to my knowledge - fully autonomous mining technology has not even been demonstrated on Earth. I am sure that their proposition is in principle (technically) feasible but at the same time I do not believe that a privately funded company will find enough people to finance a multi-billion dollar R&D project that may or may not lead to an economically sensible outcome, i.e. generate profit (not income - you have to pay back the R&D cost first) within the next 25 years. And on that timescale anything can happen - for all we know we will all be slaves to the singularity by the time they start mining. I do think that people who tackle difficult problems deserve support - and lots of it. It seems however that up till now they have only tackled making a promotional video... About job creation (sorry for the sarcasm): if usefulness is not so important my proposal would be to give shovels to two people - person A digs a hole and person B fills up the same hole at the same time. The good thing about this is that you can increase the number of jobs created simply by handing out more shovels.
Joris _

Destroyed Chinese satellite close to ISS: official - Yahoo! News - 1 views

  • If the calculations show that the debris is approaching the station at an unacceptably close range, the six astronauts will receive the order to take shelter in the two Russian Soyuz spacecraft which are docked with the ISS
  • it was already too late to carry out a manoeuvre to "divert the station from the rubbish"
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    hmm, is there info on the size of the "rubbish"?
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    I cannot find more info, but maybe they are just making a lot of fuss of it because it is from the Chinese exploded spacecraft. However, it seems to be a catalogued debris, so it is likely to be in the cm range or more
Juxi Leitner

NASA Plans for Nonprofit To Manage Station Research | SpaceNews.com - 0 views

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    "competitively select a domestic nonprofit organization to manage experiments aboard the international space station (ISS)" nice
Nina Nadine Ridder

Europe offers space station as platform for climate science - Technology News - SINA E... - 0 views

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    The European Space Agency is looking at proposals for using the International Space Station as a platform for climate science, ESA Director General Jean-Jacques Dordain said on Thursday.
Joris _

NASA could buy plasma engine for station reboost services - 1 views

  • enough to generate 1lb of thrust (0.00445kN) and fulfil the critical role of giving the Space Station a periodic altitude boost.
  • the most powerful electric engine in operation toda
  • , NASA is contracting Ad Astra Rocket for a lunar tug concept study, to take cargo from the Earth to the Moon and back, and deliver equipment in preparation for a human landing
Joris _

NASA Considering Gas Stations in Space - FoxNews.com - 3 views

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    Chris Moore is a good guy and one very open minded to new ideas and concepts at NASA; the fact that this was picked up by fox news must be that they could relay this to "gas stations" :-)
Luzi Bergamin

First circuit breaker for high voltage direct current - 2 views

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    Doesn't really sound sexy, but this is of utmost importance for next generation grids for renewable energy.
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    I agree on the significance indeed - a small boost also for my favourite Desertec project ... Though their language is a bit too "grandiose": "ABB has successfully designed and developed a hybrid DC breaker after years of research, functional testing and simulation in the R&D laboratories. This breaker is a breakthrough that solves a technical challenge that has been unresolved for over a hundred years and was perhaps one the main influencers in the 'war of currents' outcome. The 'hybrid' breaker combines mechanical and power electronics switching that enables it to interrupt power flows equivalent to the output of a nuclear power station within 5 milliseconds - that's as fast as a honey bee takes per flap of its wing - and more than 30 times faster than the reaction time of an Olympic 100-meter medalist to react to the starter's gun! But its not just about speed. The challenge was to do it 'ultra-fast' with minimal operational losses and this has been achieved by combining advanced ultrafast mechanical actuators with our inhouse semiconductor IGBT valve technologies or power electronics (watch video: Hybrid HVDC Breaker - How does it work). In terms of significance, this breaker is a 'game changer'. It removes a significant stumbling block in the development of HVDC transmission grids where planning can start now. These grids will enable interconnection and load balancing between HVDC power superhighways integrating renewables and transporting bulk power across long distances with minimal losses. DC grids will enable sharing of resources like lines and converter stations that provides reliability and redundancy in a power network in an economically viable manner with minimal losses. ABB's new Hybrid HVDC breaker, in simple terms will enable the transmission system to maintain power flow even if there is a fault on one of the lines. This is a major achievement for the global R&D team in ABB who have worked for years on the challeng
LeopoldS

[1304.5356] First observation of PeV-energy neutrinos with IceCube - 1 views

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    I did not even know about the existance of the station ... fantastic results it seems ...
LeopoldS

Linux Foundation Training Prepares the International Space Station for Linux Migration ... - 1 views

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    linux goes ISS ...
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    From there, it's just a tiny step to OSX :-)
Thijs Versloot

Future of the ISS - 0 views

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    In follow up of our discussion yesterday, what would be required to get private investment to keep an orbiting station going? Do we actually want to? On the side, at least the budget for NASA seems to make it unlikely to be able to afford both ISS and a beyond-Earth orbit exploration program (http://www.americaspace.com/?p=36568)
Thijs Versloot

Telescope to track space junk using youth radio station - 0 views

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    Team leader Professor Steven Tingay, Director of the MWA at Curtin University and Chief Investigator in the Australian Research Council Centre for All-sky Astrophysics (CAASTRO) said the MWA will be able to detect the space junk by listening in to the radio signals generated by stations including popular youth network Triple J.
Thijs Versloot

Quantum #teleportation theory to be tested on the #ISS - 8 views

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    A theory-SuperDense quantum teleportation-posed by Hampshire College physics professor Herbert Bernstein will be tested on the International Space Station. Theoretical physicist Bernstein devised the SuperDense scheme more than a decade ago in his investigations of different ways to send a quantum state from one part of a laboratory to a remote station.
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    Anna could you have a closer look into this - we should at least know what they are up to, be able to explain if anybody asks ... I also somehow missed this one in the NIAC study descriptions ... maybe a good moment to have another look at these "This is the second NASA grant for SuperDense quantum teleportation. A grant awarded in 2010 through NASA Innovative Advanced Concepts (NIAC) investigated the viability of the theory and produced the world's first experimental demonstration. Surprising or seminal experiments have marked Bernstein's research career. This is the fourth time a major proposal has become reality; two of his experiments helped found new sub-fields of physics (neutron interferometry and entanglement for quantum information)."
Thijs Versloot

This "Space Glass" Lets You Drink Whiskey In Orbit - 3 views

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    Photo credit: The glass has a number of interesting innovations. Ballentine's. A liquor company has created a " Space Glass" that they say can work in the microgravity environment of space. The Open Space Agency's James Parr was commissioned to create the product, and the results are actually quite interesting.
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    Makes sense specially after seeing very good japanese whiskey arriving at the ISS :-) http://phys.org/news/2015-08-japanese-whisky-international-space-station.html
Joris _

Astrium To Manage Atomic Clock Demo on Station | SpaceNews.com - 1 views

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    cool! i will be working on the link and the data!
Joris _

SPACE.com -- Bigelow Aerospace Soars with Private Space Station Deals - 0 views

  • A private space company offering room on inflatable space habitats for research has found a robust international market
  • A question that continues to float through the halls of NASA and the Congress: Is there a commercial market for utilizing space?
Nina Nadine Ridder

Moon Dreams | North America > United States from AllBusiness.com - 0 views

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    NASA aims to "create a healthy private-sector competition for transport to the space station". Through this the development of space tourism is enforced and an increase in the number of rocket launches should be expected. 
pacome delva

X-37B military spaceplane launches from Cape Canaveral - 1 views

  • The X-37B, which has been likened to a scaled-down space shuttle, blasted off from Cape Canaveral Air Force Station at 0052 BST (1952 EDT).
  • The X-37B, which has been likened to a scaled-down space shuttle, blasted off from Cape Canaveral Air Force Station at 0052 BST (1952 EDT). The military vehicle is unpiloted and will carry out the first autonomous re-entry and landing in the history of the US space programme.
  • In all honesty, we don't know when it's coming back for sure.
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