Cisco Blamed A Router Bug On ‘Cosmic Radiation’

Network World’s news editor contacted Slashdot with this report: A Cisco bug report addressing “partial data traffic loss” on the company’s ASR 9000 Series routers contended that a “possible trigger is cosmic radiation causing SEU [single-event upset] …

Network World’s news editor contacted Slashdot with this report: A Cisco bug report addressing “partial data traffic loss” on the company’s ASR 9000 Series routers contended that a “possible trigger is cosmic radiation causing SEU [single-event upset] soft errors.” Not everyone is buying: “It IS possible for bits to be flipped in memory by stray background radiation. However it’s mostly impossible to detect the reason as to WHERE or WHEN this happens,” writes a Redditor identifying himself as a former [technical assistance center] engineer…

“While we can’t speak to this particular case,” Cisco wrote in a follow-up, “Cisco has conducted extensive research, dating back to 2001, on the effects cosmic radiation can have on our service provider networking hardware, system architectures and software designs. Despite being rare, as electronics operate at faster speeds and the density of silicon chips increases, it becomes more likely that a stray bit of energy could cause problems that affect the performance of a router or switch.”
Friday a commenter claiming to be Xander Thuijs, Cisco’s principal engineer on the ASR 9000 router, posted below the article, “apologies for the detail provided and the ‘concept’ of cosmic radiation. This is not the type of explanation I would like to see presented to the respected users of our products. We have made some updates to the DDTS [defect-tracking report] in question with a more substantial data and explanation. The issue is something that we can likely address with an FPD update on the 2×100 or 1x100G Typhoon-based linecard.”

Read more of this story at Slashdot.

Cisco Blamed A Router Bug On ‘Cosmic Radiation’

Network World’s news editor contacted Slashdot with this report: A Cisco bug report addressing “partial data traffic loss” on the company’s ASR 9000 Series routers contended that a “possible trigger is cosmic radiation causing SEU [single-event upset] …

Network World’s news editor contacted Slashdot with this report: A Cisco bug report addressing “partial data traffic loss” on the company’s ASR 9000 Series routers contended that a “possible trigger is cosmic radiation causing SEU [single-event upset] soft errors.” Not everyone is buying: “It IS possible for bits to be flipped in memory by stray background radiation. However it’s mostly impossible to detect the reason as to WHERE or WHEN this happens,” writes a Redditor identifying himself as a former [technical assistance center] engineer…

“While we can’t speak to this particular case,” Cisco wrote in a follow-up, “Cisco has conducted extensive research, dating back to 2001, on the effects cosmic radiation can have on our service provider networking hardware, system architectures and software designs. Despite being rare, as electronics operate at faster speeds and the density of silicon chips increases, it becomes more likely that a stray bit of energy could cause problems that affect the performance of a router or switch.”
Friday a commenter claiming to be Xander Thuijs, Cisco’s principal engineer on the ASR 9000 router, posted below the article, “apologies for the detail provided and the ‘concept’ of cosmic radiation. This is not the type of explanation I would like to see presented to the respected users of our products. We have made some updates to the DDTS [defect-tracking report] in question with a more substantial data and explanation. The issue is something that we can likely address with an FPD update on the 2×100 or 1x100G Typhoon-based linecard.”

Read more of this story at Slashdot.

SpaceX Blast Investigation Suggests Breach in Oxygen Tank’s Helium System

Weeks after a SpaceX rocket exploded inexplicably, engineers at Elon Musk’s company have traced the flaw to its source. Space today released the initial results of its investigation, in which it says that a breach in helium system in the Falcon 9’s liq…

Weeks after a SpaceX rocket exploded inexplicably, engineers at Elon Musk’s company have traced the flaw to its source. Space today released the initial results of its investigation, in which it says that a breach in helium system in the Falcon 9’s liquid oxygen system caused the sudden flare up. From a Reuters report: SpaceX, owned and operated by technology entrepreneur Elon Musk, was fueling a Falcon 9 rocket on the launch pad in Florida on Sept. 1 in preparation for a routine test-firing when a bright fireball suddenly emerged around the rocket’s upper stage. “At this stage of the investigation, preliminary review of the data and debris suggests that a large breach in the cryogenic helium system of the second stage liquid oxygen tank took place,” SpaceX said in a statement posted on its website. No one was hurt in the explosion, which could be heard 30 miles (48 km) away from SpaceX’s launch pad 40 at Cape Canaveral Air Force Station. The cause of the accident is under investigation.

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Wildfire at Vandenberg Air Force Base Threatens ULA, SpaceX Launches

Longtime Slashdot reader Bruce Perens writes: A fire at Vandenberg Air Force Base on the California coast — currently over 10,000 acres in size — has approached the pads used by SpaceX and United Launch Alliance. No structures have been damaged, but …

Longtime Slashdot reader Bruce Perens writes: A fire at Vandenberg Air Force Base on the California coast — currently over 10,000 acres in size — has approached the pads used by SpaceX and United Launch Alliance. No structures have been damaged, but power lines have been destroyed. There is about 1000 feet of firebreak around each pad, but the presence of smoke and the absence of electrical power is potentially a problem for rockets, payloads, and ground-support equipment. The WorldView 4 satellite, a Delta 4 rocket, and a SpaceX Falcon 9 rocket with at least 7 (potentially 11) Iridium satellites are known to be on site. Ground support equipment at the base constitutes the United States’ only access to polar orbit for large rockets without overflying populated areas. Liquid oxygen stored on the site may already have been released as a precaution or boiled off, and there are large supplies of rocket fuel, but these have so far not been a hazard. The Soberanes fire near Big Sur, located 180 miles farther South on the California coast, has gone on for two months, burning 185 square miles and costing over $200 million dollars to fight with no end in sight. Obviously, it’s dry out there. The fire forced officials to cancel the Atlas V rocket launch on Sunday, and the next attempt won’t occur for a week.

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Pluto Is Emitting X-Rays

An anonymous reader quotes a report from Digital Trends: Scientists have noticed the tiny trans-Neptunium object emitting X-rays, which, if it is confirmed, is both a baffling and exciting discovery. Carey Lisse and Ralph McNutt from Johns Hopkins Univ…

An anonymous reader quotes a report from Digital Trends: Scientists have noticed the tiny trans-Neptunium object emitting X-rays, which, if it is confirmed, is both a baffling and exciting discovery. Carey Lisse and Ralph McNutt from Johns Hopkins University Applied Physics Laboratory and a team of colleagues detected the X-rays by pointing the Chandra X-Ray Obervatory telescope in Pluto’s direction four different times between February 2014 and August 2015. Seven photons of X-ray light were detected during these observations, confirming the team’s hypothesis that the dwarf planet is detectable on the X-ray spectrum, potentially due to the presence of an atmosphere. Their findings have been published in the scientific journal Icarus. Why is this such a big deal? First of all, it would challenge what scientists have previously believed to be true of Pluto’s nature. Until now, the popular description of the dwarf planet is as a tiny ball of frozen rock slowly meandering around the sun some 3.6-billion miles away. One of the possible explanations for why Pluto is emanating X-rays would be that the high energy particles emitted by the sun are stripping away and reacting with Pluto’s atmosphere, producing the X-rays that are visible to Chandra. There are other potential explanations, such as haze particles in Pluto’s atmosphere scattering the sun’s X-rays are possible, though unlikely given the temperature of the X-rays observed. It is also possible that these X-rays are actually bright auroras produced by the atmosphere, but that would require Pluto to have a magnetic field — something that would have been detected during New Horizon’s flyby, yet no evidence of one was found.

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Pluto Is Emitting X-Rays

An anonymous reader quotes a report from Digital Trends: Scientists have noticed the tiny trans-Neptunium object emitting X-rays, which, if it is confirmed, is both a baffling and exciting discovery. Carey Lisse and Ralph McNutt from Johns Hopkins Univ…

An anonymous reader quotes a report from Digital Trends: Scientists have noticed the tiny trans-Neptunium object emitting X-rays, which, if it is confirmed, is both a baffling and exciting discovery. Carey Lisse and Ralph McNutt from Johns Hopkins University Applied Physics Laboratory and a team of colleagues detected the X-rays by pointing the Chandra X-Ray Obervatory telescope in Pluto’s direction four different times between February 2014 and August 2015. Seven photons of X-ray light were detected during these observations, confirming the team’s hypothesis that the dwarf planet is detectable on the X-ray spectrum, potentially due to the presence of an atmosphere. Their findings have been published in the scientific journal Icarus. Why is this such a big deal? First of all, it would challenge what scientists have previously believed to be true of Pluto’s nature. Until now, the popular description of the dwarf planet is as a tiny ball of frozen rock slowly meandering around the sun some 3.6-billion miles away. One of the possible explanations for why Pluto is emanating X-rays would be that the high energy particles emitted by the sun are stripping away and reacting with Pluto’s atmosphere, producing the X-rays that are visible to Chandra. There are other potential explanations, such as haze particles in Pluto’s atmosphere scattering the sun’s X-rays are possible, though unlikely given the temperature of the X-rays observed. It is also possible that these X-rays are actually bright auroras produced by the atmosphere, but that would require Pluto to have a magnetic field — something that would have been detected during New Horizon’s flyby, yet no evidence of one was found.

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Europe Has Added 1.1 Billion Stars To Its Milky Way Map

Ben Sullivan, writing for Motherboard: The European Space Agency (ESA) has released the first batch of data from its Gaia star mapping project — a mission that is currently on track to chart one billion stars in the Milky Way. The space telescope laun…

Ben Sullivan, writing for Motherboard: The European Space Agency (ESA) has released the first batch of data from its Gaia star mapping project — a mission that is currently on track to chart one billion stars in the Milky Way. The space telescope launched in 2013 and its first data dump contains the precise celestial position and brightness of a mammoth 1,142 million stars. The release also contains the distances and movements for more than two million stars so far. ESA’s director of science Alvaro Gimenez told a press conference held at the European Space Astronomy Centre in Spain on Wednesday morning that the data release features around 490 billion astrometric, 118 billion photometric, and 10 billion spectroscopic measurements. “[The] Final survey will contain [around] 250,000 Solar System Objects, 1,000,000 galaxies, and 500,000 quasars,” said Gimenez. Those numbers are almost unimaginable, but ESA has used the data so far to form an “all-sky” view of the stars in our galaxy and neighbouring galaxies, based on Gaia’s observations from July 2014 to September 2015.

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Jeff Bezos Unveils the Design of Blue Origin’s Future Orbital Rocket — New Glenn

Earlier this year, Jeff Bezos, the founder of Blue Origin said he would unveil details about his company’s orbital rocket sometime “later this year.” He is now delivering on the promise. Bezos has released some preliminary details about the “New Glenn”…

Earlier this year, Jeff Bezos, the founder of Blue Origin said he would unveil details about his company’s orbital rocket sometime “later this year.” He is now delivering on the promise. Bezos has released some preliminary details about the “New Glenn” rocket which employs seven of the company’s new generation BE-4 rocket engines. The rocket, named after the first American to reach orbit, is bigger than Elon Musk’s Falcon Heavy rocket. Bezos said he intends to launch the New Glenn in less than a decade from now. The Verge reports: The New Glenn will incorporate reusability, according to an email update from Bezos. The first stage of the rocket will be able to land post-launch, similar to how Blue Origin’s New Shepard vehicle lands after a flight. However, the New Shepard is only capable of going to sub-orbital space, so it’s not traveling as fast or as high as a rocket going to orbit. Landing an orbital rocket post-launch will put Blue Origin in a whole new ball game. And it looks like there will be a lot of rocket to land. The New Glenn will be 23 feet in diameter and range between 270 and 313 feet high. That height depends on if there is one upper stage or two on top of the rocket. With just one upper stage, the rocket will be able to send satellites and people into lower Earth orbit (LEO). But with two upper stages, the New Glenn is capable of taking payloads beyond LEO. The main portion of the rocket will be powered by seven BE-4s, an engine that Blue Origin is currently developing. It’s the same engine that the company hopes to sell to the United Launch Alliance to power the future Vulcan rocket. Combined, the BE-4s should provide 3.85 million pounds of thrust, according to Bezos. That’s more thrust than the 2 million pounds the Delta IV Heavy is capable of, and slightly less than the 5 million pounds SpaceX’s Falcon Heavy can pull off.Bezos said: Our vision is millions of people living and working in space, and New Glenn is a very important step. It won’t be the last of course. Up next on our drawing board: New Armstrong. But that’s a story for the future.

Read more of this story at Slashdot.

Jeff Bezos Unveils the Design of Blue Origin’s Future Orbital Rocket — New Glenn

Earlier this year, Jeff Bezos, the founder of Blue Origin said he would unveil details about his company’s orbital rocket sometime “later this year.” He is now delivering on the promise. Bezos has released some preliminary details about the “New Glenn”…

Earlier this year, Jeff Bezos, the founder of Blue Origin said he would unveil details about his company’s orbital rocket sometime “later this year.” He is now delivering on the promise. Bezos has released some preliminary details about the “New Glenn” rocket which employs seven of the company’s new generation BE-4 rocket engines. The rocket, named after the first American to reach orbit, is bigger than Elon Musk’s Falcon Heavy rocket. Bezos said he intends to launch the New Glenn in less than a decade from now. The Verge reports: The New Glenn will incorporate reusability, according to an email update from Bezos. The first stage of the rocket will be able to land post-launch, similar to how Blue Origin’s New Shepard vehicle lands after a flight. However, the New Shepard is only capable of going to sub-orbital space, so it’s not traveling as fast or as high as a rocket going to orbit. Landing an orbital rocket post-launch will put Blue Origin in a whole new ball game. And it looks like there will be a lot of rocket to land. The New Glenn will be 23 feet in diameter and range between 270 and 313 feet high. That height depends on if there is one upper stage or two on top of the rocket. With just one upper stage, the rocket will be able to send satellites and people into lower Earth orbit (LEO). But with two upper stages, the New Glenn is capable of taking payloads beyond LEO. The main portion of the rocket will be powered by seven BE-4s, an engine that Blue Origin is currently developing. It’s the same engine that the company hopes to sell to the United Launch Alliance to power the future Vulcan rocket. Combined, the BE-4s should provide 3.85 million pounds of thrust, according to Bezos. That’s more thrust than the 2 million pounds the Delta IV Heavy is capable of, and slightly less than the 5 million pounds SpaceX’s Falcon Heavy can pull off.Bezos said: Our vision is millions of people living and working in space, and New Glenn is a very important step. It won’t be the last of course. Up next on our drawing board: New Armstrong. But that’s a story for the future.

Read more of this story at Slashdot.

Can Humankind Establish a Supply Chain in Space?

Long-time Slashdot reader RockDoctor shares a new paper by NASA planetary scientist Philip Metzger, “detailing a roadmap for humanity to take control of the Solar System in order to solve problems on Earth” by utilizing the resources that are already o…

Long-time Slashdot reader RockDoctor shares a new paper by NASA planetary scientist Philip Metzger, “detailing a roadmap for humanity to take control of the Solar System in order to solve problems on Earth” by utilizing the resources that are already on the moon. In a 2013 paper, Dr. Metgzer wrote: “[B]ootstrapping” can be achieved with as little as 12 metric tons landed on the Moon during a period of about 20 years… The industry grows exponentially because of the free real estate, energy, and material resources of space. The mass of industrial assets at the end of bootstrapping will be 156 metric tons with 60 humanoid robots or as high as 40,000 metric tons… Within another few decades with no further investment, it can have millions of times the industrial capacity of the United States…
Dr. Metzger wrote in 2013 that “This industry promises to revolutionize the human condition.” (See RockDoctor’s original submission for more details.) While Metzger now notes that “It will require a sustained commitment of several decades to complete,” his new article points out that a lunar supply chain outpost “will cost about 1/3 or less of the existing annual budgets of the national space programs,” thanks to advances in both robotics and artificial intelligence, and will help humanity develop renewable energy and greatly expand the availability of other limited resources.

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