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caino59 writes
"It hasn't been too long since the food shortage on the International Space Station - now the main oxygen generator has failed. Apparently, the backup supply should allow them to make it to 60 days, which is past the next scheduled trip up. Hopefully, previous crews didn't hog all the O2."
1454291
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Spy der Mann writes
"A Physics Today article entitled The Hydrogen Economy explores the possibility of using hydrogen as an energy source. The article explores the current methods, limitations, and the need for more research. For those wanting to point out the Hindenburg incident, the article doesn't talk about gaseous hydrogen only, but also about hydrogen fuel cells. My favorite quote: 'The natural world began forming its own hydrogen economy 3 billion years ago, when it developed photosynthesis to convert CO2, water, and sunlight into hydrogen and oxygen'. Interesting read for eco-fans."
1454035
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Dan East writes
"As previously reported on Slashdot, the two-man crew of the ISS had to ration food intake because the food supply had run mysteriously low. At a recent press release the reason for the shortage was revealed: the previous ISS crew consumed food meant for the other crew. "They had permission to do that but did not record how much they had eaten"."
1454003
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forgotten_my_nick writes
"According to BBC News, Russia has announced that it will no longer ferry US astronauts to space for free (It has been doing so for two years). From 2006 the US will be expected to pay."
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CryptoJoe writes
"Space.com and CNN report a successful docking between the Russian-built cargo ship Progress 16 and the International Space Station (ISS). NASA had indicated that a failure of Progress 16 would lead to the evacuation of the ISS because food supplies are critically low."
1452901
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gollum123 writes
"CNN and others are reporting that food is running so low aboard the international space station that both the crew members have been asked to cut their calories, at least until a Russian supply ship arrives in a little over two weeks. The situation is so bad that if a Russian cargo vessel scheduled to arrive on Dec. 25 has a mishap or is significantly delayed, the astronauts, one American and one Russian, will have to abandon the station and return home months ahead of schedule. An independent team is looking into how the food inventory ended up being tracked so poorly and how it can be improved in the future."
1451633
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mindpixel writes
"Physics Today is running a story about Tim Koeth's 12 inch cyclotron. Here's a quote that says it all: 'I was sitting in Tom Devlin's modern physics lecture. He described the principle of the cyclotron. He said it required a lot of RF power. I was--and am--a ham radio operator, so RF was no problem. It needed a big magnet; I knew I could find one of those. How tough could a vacuum system and chamber be?'"
1450021
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neutron_p writes
"International Space Station Expedition 9 crewmembers, Commander Gennady Padalka and NASA Science Officer Mike Fincke landed on target in the steppes of Kazakhstan at 8:36 p.m. EDT Saturday after 188 days in space."
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Moby Cock writes
"Aquanauts on board NASA's NEEMO7 have successfully completed simulated gall bladder surgery with 'coaching' from a surgeon half a continent away. The story is covered at space.com and the Globe and Mail. The project is aimed at studying the feasiblity of dealing with medical emergencies in space on the ISS. "We have learned that it is possible, and quite safe, to telementor an untrained person through a complex medical task," said Dr. Mehran Anvari, one of the principal investigators from the McMaster University Centre for Minimal Access Surgery."
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ckbreckenridge writes
"Supercompact, superfast, superpowerful turbines called ZEPPS (zero-emission power plants), designed to combat global warming, could help produce the electrical power needed to keep up with 21st century demand. They would consume methane and oxygen and produce liquid carbon dioxide, which could be sequestered underground. The current electricity grid would need to be replaced by a 'supergrid' across the USA, says Jesse H. Ausubel in The Industrial Physicist. Work on such a system should start as soon as possible, since CO2 levels leaped up 2 ppm in the past two years as global warming becomes more of a reality."
1448745
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martensitic writes
"Physics Today (the 50-year-old monthly publication of the American Institute of Physics) continues their election-year tradition with this special report, posing nine questions 'in an effort to get the candidates to specifically address questions of interest to the science community'. The 'sometimes direct and sometimes vague' written responses 'show fundamental differences on several key issues.'"
1448645
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quintin3265 writes
"Apparently, the International Space Station is becoming overloaded with junk, stored among other places in a now unused airlock. Since shuttles aren't visiting the station, the station's occupants can't return broken machines to Earth. Furthermore, the only way they can dispose of trash and human waste is by loading these items in Russian cargo ships that burn up in the atmosphere."
1446783
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Delta Vel writes
"First discovered by a Japanese amateur astronomer on July 31, this Type II supernova was imaged by Hubble on August 17th. The newly named SN 2004 dj, the closest supernova to be observed in over ten years, is about 11 million light-years away in the spiral galaxy NGC 2403. Looks like they goofed in one of the images, though--the arrow points to a different bright spot on the before-and-after image than it does on the main and annotated images." Reader
Saeed al-Sahaf writes
"Today, astronauts Gennady Padalka and Mike Fincke popped open the hatch on the Russian side of the ISS spacecraft and quickly stepped through the fourth and final spacewalk of their six-month mission. Their mission? Install three antennas and replace a 2-foot-square Russian pump panel. But of course, because it isn't a part or our Mission to Mars, it is still too dangerous work on the Hubble Telescope, which after all, is only used for science."
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mykepredko writes
"CNN has more about Robonaut B, which is an updated version of the original Robonaut including mobility using a modified Segway or a 'Space Leg' which allows it to use handholds on the ISS. I was expecting to see that it was being primarily developed for Hubble, but it should also be very useful for the ISS, allowing astronauts to stay inside when construction resumes."
1445991
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deglr6328 writes
"In light of recent, somewhat disappointing news in the world of nuclear fusion research, it is worth noting that there are still reasons to keep up hope that some breakthroughs are yet to be made. At 12:53 pm on the 13th. of this month the Levitated Dipole Experiment achieved its first plasma. The Levitated Dipole Experiment(LDX), built at MIT's Plasma Science and Fusion Center as a joint project of Columbia University and MIT, is a magnetic confinement fusion research device, that unlike all previous stellarator, reverse-field pinch and tokamak like experiments, uses a superconducting levitated torus to confine its plasma. The LDX's achievement of first plasma is, in a way, about 17 years in the making even though it has only been in construction since 1999. The concept for LDX was first considered by Akira Hasegawa as he was studying the data coming in from the Voyager missions which flew through the (dipole) magnetospheres of the outer planets. He noticed that unlike laboratory confined fusion plasmas which tended to be unstable, difficult to control, and which lost energy quickly, the plasma of a magnetosphere is intrinsically more quiescent, stable and actually reacts favorably (increases its density/temperature) to outside perturbations such as ie. bombardment by a solar storm. A highly informative and interesting video of operations on the day of first shot can be found here. Congratulations to the scientists and engineers who have worked very hard on getting the project to this point and here's looking forward to the possibility that LDX will reveal fundamentally new physics in the arduous quest for clean fusion energy."
1445961
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Guinnessy writes
"Last March, NASA carried out the world's first test flight of a scramjet-powered aircraft. The Industrial Physicist has the latest results from this test. According to the article scramjet-powered missiles and aircraft could be in mass production as early as 2010. This piece is also a good introduction for those unfamilar with scramjet technology."
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aarrieta writes
"I was thinking about the location of Slashdotters around the world. Many of us read /. from our houses/offices/schools. But I guess there are people reading Slashdot from non-traditional places/sites (an oil platform in the middle of the sea, Antarctica, the ISS, etc?) But what's the strangest place you've ever read Slashdot from, or the most remote place you're currently reading it from?"
1443049
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Teahouse writes
"After a failed attempt last week, the ISS Astronauts finally got to fix the external gyroscope circut breaker in the station. Tests are being run today, but it looks like the ISS is back to having attitude stability with redundancy. This is particularly significant with the Shuttle being grounded for an extended period because the ISS would have had to use thruster fuel to keep the Station's solar panels pointed in the right direction without the gyroscopes, and no guarantee when more fuel would be arriving."
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Carnildo writes
"Reuters is reporting that the cause of the aborted spacewalk was a stuck switch that gave a false reading of a leak."
1442641
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RobertB-DC writes
"The spacewalk that was intended to replace a balky power supply ended almost before it started, according to Spaceflight Now's Mission Status Center play-by-play. The Russian Orlan spacesuit worn by US astronaut Mike Fincke developed a problem with its oxygen supply (!), forcing both spacewalkers back to the airlock after less than 15 minutes. Mission control and the ISS crew are still debating what to do next."
