Scientists Employing Supercomputers for Complex Visuals

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It may seem that the age of the supercomputer a la Cray-1 has long passed. But that’s not entirely true–we just don’t hear about them as often. For example, scientists at the U.S. Department of Energy’s Argonne National Laboratory are visualizing supernova, protein structures, and other complex phenomena using supercomputers.

The scientists there are using a technique called software-based parallel volume rendering, which interprets the billions of data points collected from MRIs, X-rays, or research simulations. They’re also working on equations that could search for sudden density changes–for example, separating bone from muscle data–in order to generate complex visualizations.

Using parallel computing, such as with Argonne’s Blue Gene/P supercomputer, scientists can create images using the computer’s 160,000 cores. (Try that on a Core i7.) The above image is a rendering of a supernova–specifically, the mechanisms behind a star’s violent collapse, with different colors and transparencies depicting different values of entropy. (Image credit: ANL)

Report from China: Eclipsed (Mostly by Clouds)

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The early morning of July 22 found me in Jinshanwei, southwest of Shanghai, hoping to see the longest total solar eclipse of the 21st Century. I was there as part of a tour sponsored by the Planetary Society. (Jinshanwei, also known as Shanghai Beach, is actually within the city limits of Shanghai, although more than 60km from the city center.) The weather was quite murky, and though the clouds briefly thinned enough for us to see the partially eclipsed Sun from time to time, they closed in again so that we were denied any view of the totally eclipsed Sun in the otherwise dramatic midmorning darkness.

 

 

More Leaks Found in Large Hadron Collider

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Man, tremendous particle accelerators just can’t catch a break these days. Right as engineers finished repairing the helium leak that benched the Large Hadron Collider from doing much last year (aside from a successful early test), the team discovered two more vacuum leaks in another part of the machine.

In order for the leaks to be repaired, first engineers have to warm up the area, which is normally maintained at “ultracold temperatures,” according to Wired. The new delay will likely push the LHC’s projected restart sometime into November, after already being delayed twice recently.

Currently, the LHC is running about two and a half years behind schedule, according to the report.

Amateur Astronomer Calls in Jupiter Impact First

Jupiter_Impact_Wesley.jpgWith today’s tracking-enabled telescopes, digital cameras, and computer software, amateur astronomers are doing more useful work than ever before. Such was the case with Jupiter: it appears that a large object has just struck the surface of the planet. That’s similar to what happened in 1994 with comet Shoemaker-Levy–on the exact date of the 15th anniversary of that impact, in fact, not to mention the 40th anniversary of the Apollo landing.

Space.com reports that while NASA tracked the impact, the initial call came from Anthony Wesley of Murrumbateman, Australia, who told NASA he noticed a new dark “scar” suddenly appear on Jupiter early Friday between 6 a.m. and 12 p.m. EDT.

“I’d noticed a dark spot rotating into view in Jupiter’s south polar region and was starting to get curious,” Wesley wrote on his observation blog. “When first seen close to the limb (and in poor conditions) it was only a vaguely dark spot, I thought likely to be just a normal dark polar storm. However as it rotated further into view, and the conditions also improved, I suddenly realized that it wasn’t just dark, it was black in all channels, meaning it was truly a black spot.”

Wesley used a 14.5-inch reflector on an equatorial mount for his observations, as a separate New York Times article reports. NASA scientists are still studying the images to figure out what it was that hit Jupiter. (Image credit: Anthony Wesley)

Apollo Missions Driving Moon Lander Design at NASA

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The Apollo missions marked a turning point in human history. They changed the political climate of the day, made many tech advances possible, and inspired future scientists and astronomers the world over. But it turns out they’re also having a far more practical effect: acting as a guiding light for future lunar missions.

NASA’s next-generation Orion spaceship–scheduled for first launch in 2015–may look a lot like the Apollo craft in use 40 years ago. But as Space.com reports, the similarities are often just skin deep–and also draw from the Shuttle program as well. “The computing power of modern electronics just dwarfs what [Apollo engineers] had available,” Jim Geffre, a NASA engineer working on Orion, said in the article. “That allows us to do a lot more and build more automation into the spacecraft. More performance that uses less power and less space allows us to build in redundancy that Apollo didn’t have.”

The Orion is also about four feet larger in diameter–16.5 feet, to the Apollo craft’s 12.8 feet–which will enable four astronauts to travel to the moon instead of three, let all four descend to the surface (instead of just two), and allow for missions that run several weeks long. (Image credit: NASA)

eSpace Funding Space Entrepreneurs

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The commercial push for spaceflight continues: eSpace: the Center for Space Entrepreneurship, a non-profit, aerospace business investment firm supported by the Air Force Research Lab, has put up funding for three companies for space business development as part of its eSpace Incubator program.

The three companies are Zybek Advanced Products, which is building synthetic moon rock for NASA to test lander and rover performance; Space Awareness Services, which tracks satellites, space debris, and other orbital objects; and Net-Centric Design Professionals, a cyber-security firm working on satellite imaging and network design.

Good stuff all around, guys; just let us know when we can all hitch rides on spaceships and we’ll be psyched.

Restored Video Shows Apollo 11 Moonwalk

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NASA released Thursday newly restored video of the Apollo 11 mission from July 20th, 1969, including video showing the moonwalk more clearly than what has been seen before. It’s part of the 40th anniversary commemoration of astronauts landing on the moon for the first time.

The initial release shows 15 key moments from the mission. The video material came from a variety of sources and was assembled by a team of Apollo-era NASA engineers.

“The restoration is ongoing and may produce even better video,” said Richard Nafzger, an engineer at NASA’s Goddard Space Flight Center that oversaw TV processing during Apollo 11, in a statement. “The restoration project is scheduled to be completed in September and will provide the public, future historians, and the National Archives with the highest quality video of this historic event.”

The new videos are definitely clearer. Unfortunately, an opportunity to make them sharper still was lost, it turns out. NASA concluded after an exhaustive three year search that the original tapes–not the degraded broadcast versions–were most likely erased and reused accidentally sometime in the early 1980s for satellite missions, as NPR reports. But we’ll take whatever we can get, of course.

With that, we’d like to turn it over to you, our readers. What are your memories of the Apollo 11 mission? Let us know in the Comments section below.

Scientists Discover Oldest Supernova Ever

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Chalk it up to some sophisticated digital imaging: Astronomers have discovered the oldest and farthest supernova ever detected, AFP reports, a huge star that exploded 11 billion years ago.

This time around, scientists tried something different: they compared several years of images taken from one portion of the sky, which let them look for objects that changed in brightness over time, according to the article. Essentially, the astronomers “subtracted” the changes from the original image–which erased the entire galaxy save for the supernova, which had changed.

“What we’re looking for are things that were there one year, but which weren’t there the next,” said Mark Sullivan, an astronomer from the University of Oxford in the UK and one of the authors of the study, in a separate BBC report.

Back in April, NASA’s Swift Observatory detected a 13-billion-year-old gamma-ray burst, most likely from a supernova near the beginning of the universe. But this latest discovery marks the first confirmation of a full-on star explosion. (Image credit: NASA/RCW 86 supernova)

CERN Stress-Testing Large Hadron Collider, Everyone Hide Under a Chair

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CERN has completed repairs of the Large Hadron Collider, and has begun running massive stress tests ahead of its relaunch in October, according to Syfy’s DVICE.

Through the end of last month, the Collider sent out data to 11 computer centers across Europe, Asia, and North America, which in turn relayed the data to 140 locations in 33 countries for processing, according to the report. “A whopping 4 GB a second was cranked out from the LHC, though researchers predict that, while operating, the LHC will only send out around 1.3 GB of data.” Essentially, that means all systems are go.

In June, CERN announced that they were pushing the LHC’s startup back an extra month, from September to October. CERN shut the particle accelerator down last September due to a liquid helium leak caused by an electrical fault.

NASA Director: Self-Replicating Robots Could Explore Mars

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It may seem like it’s straight out of a science fiction story, but director of NASA’s Ames Research Center recently suggested in an interview with H+ magazine that researchers could use nanotechnology to build self-replicating robots on Mars, according to Slashdot.

“If we really want to settle Mars, and we don’t want to have to carry millions of tons of equipment with us to duplicate the way we live on Earth, these technologies will be key,” Peter Worden said in the interview. He added in the article that the self-replicating robots could survey Mars for underground microbes while protecting the unique Martian biosphere, since it could hint at our own planet’s beginnings.

The question, Worden asked, is whether we could take existing microbes–self-replicating robots, in a sense–and engineer them to do other things. On a related note, the report said that the possibility of underground microbes already on Mars has only increased, given the recent discoveries of carbon and water.