Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×
NASA

X-37B To Fly Again 47

Posted by timothy
from the gets-high-with-a-little-help-from-its-friends dept.
schwit1 writes The May 6 Atlas 5 launch will carry one of the Air Force's two X-37B mini-shuttles on a new mission in space. "The Air Force won't yet confirm which of the Boeing-built spaceplanes will be making the voyage. The first craft returned in October from a 675-day mission in space following a 224 day trek in 2010. OTV No. 2 spent 469 days in space in 2011-2012 on its only mission so far. "The program selects the Orbital Test Vehicle for each activity based upon the experiment objectives," said Capt. Chris Hoyler, an Air Force spokesperson. "Each OTV mission builds upon previous on-orbit demonstrations and expands the test envelope of the vehicle. The test mission furthers the development of the concept of operations for reusable space vehicles." There are indications that the Air Force wants to attempt landing the shuttle at Kennedy this time.
China

China's Foreign Ministry: China Did Not Attack Github, We Are the Major Victims 134

Posted by samzenpus
from the it-wasn't-us dept.
An anonymous reader writes At the Regular Press Conference on March 30, China's Foreign Ministry Spokesperson Hua Chunying responded on the charge of DDoS attack over Github. She said: "It is quite odd that every time a website in the US or any other country is under attack, there will be speculation that Chinese hackers are behind it. I'd like to remind you that China is one of the major victims of cyber attacks. We have been underlining that China hopes to work with the international community to speed up the making of international rules and jointly keep the cyber space peaceful, secure, open and cooperative. It is hoped that all parties can work in concert to address hacker attacks in a positive and constructive manner."
Books

Book Review: Future Crimes 27

Posted by samzenpus
from the read-all-about-it dept.
benrothke writes Technology is neutral and amoral. It's the implementers and users who define its use. In Future Crimes: Everything Is Connected, Everyone Is Vulnerable and What We Can Do About It, author Marc Goodman spends nearly 400 pages describing the dark side of technology, and those who use it for nefarious purposes. He provides a fascinating overview of how every major technology can be used to benefit society, and how it can also be exploited by those on the other side. Keep reading for the rest of Ben's review.
China

Chinese Scientists Plan Solar Power Station In Space 220

Posted by samzenpus
from the or-you-know-stop-polluting-so-much dept.
knwny points out this lofty proposed power plan in China. "The battle to dispel smog, cut greenhouse gases and solve the energy crisis is moving to space. If news reports are to be believed, Chinese scientists are mulling the construction of a solar power station in a geosynchronous orbit 36,000 kilometres above ground. The electricity generated would be converted to microwaves or lasers and transmitted to a collector on Earth. If realized, it will surpass the scale of the Apollo project and the International Space Station and be the largest-ever space project."
ISS

NASA Denies New Space Station Partnership With Russia 83

Posted by samzenpus
from the wasn't-me dept.
schwit1 writes NASA officials today denied they were negotiating a partnership with Russia to build a space station replacement for ISS, as suggested yesterday by the head of Russia's space program. Maybe the misunderstanding comes from NASA head Charles Bolden, who is currently in Russia. Bolden probably said some nice feel-good things to the Russians, things like "We want to keep working together," and "We will support your plans for your future space station." None of this was meant as a commitment, but the Russians might have taken them more seriously than Bolden realized.
Space

SpaceX's New Combustion Technologies 123

Posted by samzenpus
from the try-this-one dept.
An anonymous reader shares this story that takes a look at some of the advances SpaceX is working on. "Getting a small group of human beings to Mars and back is no easy task, we learned at the recent GPU Technology Conference in San Jose hosted graphics chip and accelerator maker Nvidia. One of the problems with such a mission is that you need a very large and efficient rocket engine to get the amount of material into orbit for the mission, explained Adam Lichtl, who is director of research at SpaceX and who with a team of a few dozen programmers is try to crack the particularly difficult task of better simulating the combustion inside of a rocket engine. You need a large engine to shorten the trip to Mars, too....Not only do you need a lot of stuff to get to Mars and sustain a colony there, but you also need a way to generate fuel on Mars to come back to Earth. All of these factors affect the design of the rocket engine....As if these were not problems enough, there is another really big issue. The computational fluid dynamics, or CFD, software that is used to simulate the movement of fluids and gases and their ignition inside of all kinds of engines is particularly bad at assisting in rocket engine design. 'Methane is a fairly simple hydrocarbon that is perfectly good as a fuel,' Lichtl said. 'The challenge here is to design an engine that works efficiently with such a compound. But rocket engine CFD is hard. Really hard.'"
ISS

Russia Wants To Work With NASA On a New Space Station 152

Posted by Soulskill
from the have-to-protect-the-wormhole-from-the-carassians dept.
HughPickens.com writes with news that Russian officials are talking about working with NASA to build a new space station as a replacement for the ISS after its operations end in 2024. Igor Komarov, head of the Russian Federal Space Agency, was unambiguous in his support for such a partnership. He added, "It will be an open project. It will feature not only the current members of the ISS." NASA, while careful not to discourage future cooperation, was not so enthusiastic. They said, "We are pleased Roscomos wants to continue full use of the International Space Station through 2024 -- a priority of ours -- and expressed interest in continuing international cooperation for human space exploration beyond that. The United States is planning to lead a human mission to Mars in the 2030s, and we have advanced that effort farther than at any point in NASA's history. We welcome international support for this ambitious undertaking." They reiterated that there are no formal agreements in place as of yet. These comments come as three crew members arrive at the ISS, two of whom will be up there for an entire year.
Government

Taxpayer Subsidies To ULA To End 42

Posted by timothy
from the but-don't-they-know-about-the-multiplier? dept.
schwit1 writes Because it has concluded that they make it impossible to have a fair competition for contracts, the Air Force has decided to phase out taxpayer subsidies to the United Launch Alliance (ULA). The specific amounts of these subsidies have been effectively buried by the Air Force in many different contracts, so we the taxpayers really don't know how much the are. Nonetheless, this decision, combined with the military report released yesterday that criticized the Air Force's over-bearing and restrictive certification process with SpaceX indicates that the political pressure is now pushing them hard to open up bidding to multiple companies, which in turn will help lower cost and save the taxpayer money.
Space

Dark Matter Is Even More of a Mystery Than Expected 234

Posted by Soulskill
from the does-not-play-well-with-other-matter dept.
schwit1 writes: Using the Hubble and Chandra space telescopes astronomers have discovered that dark matter is not only invisible to direct observation, it is invisible to itself! Quoting: "As two galactic clusters collide, the stars, gas and dark matter interact in different ways. The clouds of gas suffer drag, slow down and often stop, whereas the stars zip past one another, unless they collide — which is rare. On studying what happens to dark matter during these collisions, the researchers realized that, like stars, the colliding clouds of dark matter have little effect on one another. Thought to be spread evenly throughout each cluster, it seems logical to assume that the clouds of dark matter would have a strong interaction — much like the colliding clouds of gas as the colliding dark matter particles should come into very close proximity. But rather than creating drag, the dark matter clouds slide through one another seamlessly." The data here is on the very edge of reality, built on too many assumptions. We know that something undetected as yet is influencing the motions of galaxies, but what exactly it is remains completely unknown. These results only make the mystery more mysterious.
The Military

US Air Force Overstepped In SpaceX Certification 71

Posted by Soulskill
from the don't-ruin-this-for-us,-government dept.
Rambo Tribble writes: An internal review commissioned by Air Force Secretary Deborah James has concluded that Air Force personnel tasked with evaluating SpaceX's certification treated it as a design review, going so far as to dictate organizational changes in the company. This was judged contrary to the intention of promoting a competitive environment. The report, prepared by former Air Force Chief of Staff General Larry Welch, concluded, "The result to date has been ... the worst of all worlds, pressing the Falcon 9 commercially oriented approach into a comfortable government mold that eliminates or significantly reduces the expected benefits to the government of the commercial approach. Both teams need to adjust."
Government

GAO Denied Access To Webb Telescope Workers By Northrop Grumman 132

Posted by samzenpus
from the sorry-you-can't-come-in dept.
schwit1 writes In a report as well as at House hearings today the GAO reported that Northrop Grumman has denied them one-on-one access to workers building the James Webb Space Telescope. "The interviews, part of a running series of GAO audits of the NASA flagship observatory, which is billions of dollars overbudget and years behind schedule, were intended to identify potential future trouble spots, according to a GAO official. But Northrop Grumman Aerospace, which along with NASA says the $9 billion project is back on track, cited concerns that the employees, 30 in all, would be intimidated by the process." To give Northrop Grumman the benefit of the doubt, these interviews were a somewhat unusual request. Then again, if all was well why would they resist? Note too that the quote above says the cost of the telescope project is now $9 billion. If the project was "back on track" as the agency and Northrop Grumman claim, then why has the budget suddenly increased by another billion?
NASA

Sierra Nevada's Dream Chaser Could Land At Ellington Space Port Near Houston 24

Posted by samzenpus
from the coming-soon dept.
MarkWhittington writes Despite having been rejected in NASA's commercial crew program, Sierra Nevada has been very busy trying to develop its lift body spacecraft, the Dream Chaser. Having rolled out a smaller, cargo version of the spacecraft for the second round for contracts for commercial cargo to the International Space Station, the company has amended the unfunded Space Act Agreement with NASA to add a closeout review milestone that would help transition the Dream Chaser from the preliminary design review to the critical design review step. Finally, Sierra Nevada announced a new agreement on Tuesday with the Houston Airport System to use Ellington Spaceport as a landing site for the cargo version of the Dream Chaser.
Privacy

Public Records Request Returns 4.6M License Plate Scans From Oakland PD 110

Posted by Soulskill
from the i-know-where-you-drove-last-summer dept.
schwit1 points out a report from Ars Technica on how they used a public records request to acquire an entire License Plate Reader dataset from the Oakland Police Department. The dataset includes 4.6 million total reads from 1.1 million unique plates. They built a custom visualization tool to demonstrate how this data could be abused. "For instance, during a meeting with an Oakland city council member, Ars was able to accurately guess the block where the council member lives after less than a minute of research using his license plate data. Similarly, while "working" at an Oakland bar mere blocks from Oakland police headquarters, we ran a plate from a car parked in the bar's driveway through our tool. The plate had been read 48 times over two years in two small clusters: one near the bar and a much larger cluster 24 blocks north in a residential area—likely the driver's home." Though the Oakland PD has periodically deleted data to free up space — the 4.6 million records were strewn across 18 different Excel spreadsheets with hundreds of thousands of lines each — there is no formal retention limit.
Space

Jupiter Destroyed 'Super-Earths' In Our Early Solar System 69

Posted by Soulskill
from the destroyer-of-worlds dept.
sciencehabit writes: If Jupiter and Saturn hadn't formed where they did—and at the sizes they did—as the disk of dust and gas around our sun coalesced, then our solar system would be a very different and possibly more hostile place, new research suggests (abstract). Computer models reveal that in the solar system's first 3 million years or so, gravitational interactions with Jupiter, Saturn, and the gas in the protoplanetary disk would have driven super-Earth–sized planets closer to the sun and into increasingly elliptical orbits. In such paths, a cascade of collisions would have blasted any orbs present there into ever smaller bits, which in turn would have been slowed by the interplanetary equivalent of atmospheric drag and eventually plunged into the sun. As Jupiter retreated from its closest approach to the sun, it left behind the mostly rocky remnants that later coalesced into our solar system's inner planets, including Earth.
Australia

World's Largest Asteroid Impacts Found In Central Australia 74

Posted by samzenpus
from the call-bruce-willis dept.
schwit1 writes Scientists doing geothermal research in Australia have discovered evidence of what they think is the largest known impact zone from an meteorite on Earth. The zone is thought to be about 250 miles across, and suggests the bolide split in two pieces each about 6 miles across before impact. The uncertainty is that the evidence for this impact is quite tentative: "The exact date of the impacts remains unclear. The surrounding rocks are 300 to 600 million years old, but evidence of the type left by other meteorite strikes is lacking. For example, a large meteorite strike 66 million years ago sent up a plume of ash which is found as a layer of sediment in rocks around the world. The plume is thought to have led to the extinction of a large proportion of the life on the planet, including many dinosaur species. However, a similar layer has not been found in sediments around 300 million years old, Dr Glikson said. 'It's a mystery – we can't find an extinction event that matches these collisions. I have a suspicion the impact could be older than 300 million years,' he said."
NASA

NASA's Abandoned Launch Facilities 56

Posted by samzenpus
from the lost-in-time dept.
trazom28 writes I ran across an interesting slideshow of NASA's abandoned launch facilities. It's an interesting piece of scientific history. The images are from "photographer Roland Miller's upcoming book, Abandoned in Place. The book is a visual study of the deactivated launch and research facilities that played an essential role in early American space exploration.
Space

Rosetta Spacecraft Makes Nitrogen Discovery On Comet 17

Posted by samzenpus
from the what's-that-smell dept.
An anonymous reader sends word that the European Space Agency’s Rosetta spacecraft has detected traces of molecular nitrogen on the comet 67P/Churyumov–Gerasimenko. "A peculiar mix of molecular nitrogen on the comet target of Europe's Rosetta spacecraft may offer clues to the conditions that gave birth to the entire solar system. Molecular nitrogen was one of the key ingredients of the young solar system. Its detection in Comet 67P/Churyumov–Gerasimenko, which Rosetta is currently orbiting, suggests that the comet formed under low-temperature conditions (a requirement to keeping nitrogen as ice), according to officials with the European Space Agency."
Transportation

Virgin Could Take On Tesla With Electric Car 105

Posted by timothy
from the like-a-branson dept.
According to a story at Ars Technica, Virgin empire founder Richard Branson says 'teams of people' are working on electric cars. Says the article: Virgin is working on electric cars and could one day take on Tesla, according to company founder Richard Branson. Speaking at a racing event in Miami, Branson said Virgin had "teams of people" working on electric cars but refused to be drawn on specific details. The company's Virgin Racing team already competes in the all-electric Formula E championship, a high-speed, battery-powered spinoff of Formula 1. Branson has now hinted that Virgin's involvement could lead to the company selling its own electric cars. ... Branson's business has continued to expand in recent years. As well as trains and planes, Virgin now has a fledgling space operation and is soon to launch its own cruise ships.
Education

Arkansas Is Now the First State To Require That High Schools Teach Coding 211

Posted by timothy
from the unexpected-locale dept.
SternisheFan writes Arkansas will be implementing a new law that requires public high schools to offer classes in computer science starting in the 2015-16 school year. Arkansas Gov. Asa Hutchinson, who signed the bill, believes it will provide "a workforce that's sure to attract businesses and jobs" to the state. $5 million of the governor's proposed budget will go towards this new program. For the districts incapable of of administering these classes due to lack of space or qualified teachers, the law has provisions for online courses to be offered through Virtual Arkansas. Although students will not be required to take computer science classes, the governor's goal is to give students the opportunity if they "want to take it." Presently, only one in 10 schools nationwide offer computer science classes. Not only will Arkansas teach these classes in every public high school and charter school serving upper grades, the courses will count towards the state's math graduation requirement as a further incentive for students. Training programs for teacher preparation will be available, but with the majority of the infrastructure already primed, the execution of this new law should hopefully be painless and seamless.
Space

How Space Can Expand Faster Than the Speed of Light 162

Posted by timothy
from the space-is-silent-but-deadly dept.
StartsWithABang writes You know the fundamental principle of special relativity: nothing can move faster than the speed of light. But space itself? That's not a "thing" in the conventional sense. Two years after coming up with special relativity, Einstein devised the equivalence principle, and thus began the development of general relativity, where space itself would have properties that changed over time, responding to changes in matter and energy. This includes the ability for it to expand, even faster than the speed of light, if the conditions are right.