Tuesday, July 26, 2011

'Missing' Moon Dust Turns Up at St. Louis Auction (SPACE.com)

NASA has recovered a few grains of moon dust after learning that the lunar material was set to be auctioned off in St. Louis this month, federal prosecutors announced Thursday (June 23).

There's not much of the stuff ? just some residue attached to a piece of transparent tape one-eighth of an inch (3 millimeters) wide. But its origin and history are what make the dust special: It came down to Earth in July 1969 with the Apollo 11 astronauts, who were the first humans to set foot on the lunar surface.

The United States Attorney's Office for Eastern Missouri learned in early June that the moon dust was going to be auctioned off in St. Louis. NASA investigators then contacted the auction house, Regency-Superior Auctions, which withdrew the material, prosecutors said.

Officials from the U.S. Attorney's Office took possession of the tape last Friday (June 17), then handed it over to NASA. The material was returned to the agency's Johnson Space Center in Houston on Monday (June 20). [Photos: Our Changing Moon]

The federal government regards the Apollo lunar samples as national treasures. It has never knowingly given moon rocks or loose moon dust to private individuals. But no arrests have been made in this case.

The woman who consigned the tape to Regency-Superior inherited it from her late husband, who apparently acquired it in good faith, officials said. The woman's name has not been released.

"In this particular situation, there was no wrong done," said space history expert Robert Pearlman, editor of the website collectSPACE.com, which is a SPACE.com partner. "Everyone cooperated."

Selling is not a crime

It's not illegal per se to sell lunar materials, Pearlman said. It all depends on how the seller came into possession of the samples. And people have gotten a hold of moon dust legally.

For example, NASA gave Apollo astronauts the patches from the outsides of their spacesuits, which had become impregnated with lunar dust. And the agency once released from its inventory a so-called "temporary stowage bag" used on one of the Apollo flights to hold small items during the mission.

In the course of the flight, the items placed in the bag stained the interior with moon dust. When the bag was later sold during an Oct. 2000 auction, its new owner found some smatterings of the remaining moon dust inside when he opened it up, Pearlman said.

A dusty film cartridge

The moon dust to be auctioned in St. Louis this month was originally lodged in the film cartridge of a camera used by Apollo 11 astronauts, who apparently dropped it on the surface of the moon.

Back then, a NASA employee named Terry Slezak was in charge of processing the film brought back from the Apollo missions. When he opened this particular cartridge, dust poured out, getting all over his hands. Slezak thus became the non-astronaut ever to touch lunar material with his bare hands.

According to Slezak, he used a towel and some transparent tape to clear the dust off the film, the New York Times reported.

The Apollo 11 astronauts later presented Slezak with a signed commemorative poster board, complete with pictures showing a smiling Slezak holding his dusty hand up for the camera. Slezak affixed the dusty piece of tape to the poster.

"I thought that would be kind of neat," Slezak told the Times.

Slezak sold the poster at auction in 2001 for just over $25,000, Pearlman said. While Slezak was never authorized to take the dust-flecked tape, he maintains that NASA has never questioned him about the matter.

Later, the dusty tape from the poster board was cut up into tiny pieces, some of which were also put up for sale. A piece three-eighths of an inch (9 mm) wide has sold for about $6,000, and slivers the size of the one Regency-Superior was going to auction off have been offered at nearly $1,000, Pearlman said.

Moon rocks for sale?

NASA astronauts brought 842 pounds (382 kilograms) of lunar material home to Earth between 1969 and 1972, souvenirs from their Apollo moonwalking jaunts. A court has valued this stuff at $1.44 million per ounce ($50,800 per gram), based on how much those NASA missions cost.

The space agency has given small amounts of moon material to national and state governments over the years. But NASA hangs on tightly to the rest of it.

"They track it very well," Pearlman said, adding that less than 1 ounce (28 g) of the lunar samples is thought to be unaccounted for.

But moon rocks, real or fake, are circulating on the market.

Just last month, NASA officials busted a woman who was trying to sell a purported moon rock for $1.7 million. The moon rock sting went down in a Denny's restaurant in Lake Elsinore, Calif.

While the auction of this tiny tape sliver seems to be small potatoes by comparison, Pearlman said he understands why NASA works so hard to recover lunar materials.

"You can't undo precedent," Pearlman said. "They want to be able to defend when there are large missing moon rocks, if that ever comes up. So they have to respond to every report that they receive."

Preliminary analysis of the dust on the tape indicates that it likely is of lunar origin, though it will take two to three weeks to confirm this definitively, prosecutors said.

You can follow SPACE.com senior writer Mike Wall on Twitter: @michaeldwall. Follow SPACE.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.

science illustrated science journal science magazine science news science news chemistry

NASA prepping next Mars spacecraft for fall launch (AP)

PASADENA, Calif. ? NASA's next roving spacecraft to the surface of Mars has arrived in Florida after a cross-country flight to undergo final testing.

A C-17 cargo jet carrying the rover nicknamed Curiosity took off from March Air Force Base in California and arrived Wednesday night in Florida.

Engineers will spend the next several months prepping the rover for its November launch.

The $2.5 billion mission was supposed to fly in 2009, but problems during development pushed costs up and delayed launch.

Curiosity is scheduled to land in August 2012 and will study whether the Martian environment was ever favorable for microbial life.

NASA's Jet Propulsion Laboratory manages the program, formally known as the Mars Science Laboratory.

space news web of science science science news astronomy news

Pollution found in Pa. wells near site of blowout (AP)

ALLENTOWN, Pa. ? Federal environmental officials say that testing has revealed contamination in three private water wells following an April blowout at a Pennsylvania natural gas drilling site.

Environmental Protection Agency spokesman Roy Seneca said Friday that EPA took water samples from seven private water wells near the Chesapeake Energy Corp. drilling site near Canton in in northeastern Pennsylvania's Bradford County.

EPA briefed residents on the sampling results Thursday. Seneca declined to reveal the nature of the contamination. He says EPA will sample the wells again in July.

The Chesapeake well spilled thousands of gallons of salty, chemical-laced water into fields and a stream.

science definition science games science illustrated science journal science magazine

Stress May Worsen Lung Function in Kids Breathing Dirty Air (HealthDay)

FRIDAY, June 24 (HealthDay News) -- Children who live in stress-filled homes experience more air pollution-related lung damage than kids in less stressful environments, a new study finds.

Researchers looked at the effects of traffic-related pollution and parental stress on 1,400 children, aged 10 to 12, in California. There were no significant associations noted between parental stress alone and lung function levels in the children.

But as exposure to traffic pollution increased, lung function decreased among children in high-stress homes. This did not occur among children in low-stress homes, said the researchers at the Keck School of Medicine of the University of Southern California, Los Angeles.

Certain factors associated with low socioeconomic levels were also linked with high stress, such as an annual income below $30,000, low education levels among parents, no air conditioning in the home and a lack of health insurance.

The study appears online ahead of print in the American Journal of Respiratory and Critical Care Medicine.

"One possible explanation for the stress-related pattern of [traffic-related pollution] respiratory effects is the biological pathways common to effects of traffic-related pollution and stress," lead researcher Talat Islam, an assistant professor in the environmental health division at Keck, said in a news release from the American Thoracic Society.

"Like air pollution, stress has been linked to both inflammation and oxidative damage at the cellular level, so this may explain the association," he added.

The public health implications of this finding are clear, he noted.

"The magnitude of the traffic-related pollution-associated deficits in [lung function] levels in children growing up in high-stress households was larger than deficits reported for children exposed to maternal smoking during pregnancy and secondhand tobacco smoke," Islam said.

"Our findings suggest that by regulating traffic-related pollution levels around residential areas and schools, we could reduce the adverse effect of traffic-related pollution on lung function among vulnerable children," he concluded.

More information

The U.S. Centers for Disease Control and Prevention has more about respiratory health and air pollution.

science articles science current events science definition science games science illustrated

NASA prepping next Mars spacecraft for fall launch (AP)

PASADENA, Calif. ? NASA's next roving spacecraft to the surface of Mars has arrived in Florida after a cross-country flight to undergo final testing.

A C-17 cargo jet carrying the rover nicknamed Curiosity took off from March Air Force Base in California and arrived Wednesday night in Florida.

Engineers will spend the next several months prepping the rover for its November launch.

The $2.5 billion mission was supposed to fly in 2009, but problems during development pushed costs up and delayed launch.

Curiosity is scheduled to land in August 2012 and will study whether the Martian environment was ever favorable for microbial life.

NASA's Jet Propulsion Laboratory manages the program, formally known as the Mars Science Laboratory.

popular science subscription science articles science current events science definition science games

Pollution found in Pa. wells near site of blowout (AP)

ALLENTOWN, Pa. ? Federal environmental officials say that testing has revealed contamination in three private water wells following an April blowout at a Pennsylvania natural gas drilling site.

Environmental Protection Agency spokesman Roy Seneca said Friday that EPA took water samples from seven private water wells near the Chesapeake Energy Corp. drilling site near Canton in in northeastern Pennsylvania's Bradford County.

EPA briefed residents on the sampling results Thursday. Seneca declined to reveal the nature of the contamination. He says EPA will sample the wells again in July.

The Chesapeake well spilled thousands of gallons of salty, chemical-laced water into fields and a stream.

web of science science science news astronomy news health news

Monday, July 25, 2011

Pollution found in Pa. wells near site of blowout (AP)

ALLENTOWN, Pa. ? Federal environmental officials say that testing has revealed contamination in three private water wells following an April blowout at a Pennsylvania natural gas drilling site.

Environmental Protection Agency spokesman Roy Seneca said Friday that EPA took water samples from seven private water wells near the Chesapeake Energy Corp. drilling site near Canton in in northeastern Pennsylvania's Bradford County.

EPA briefed residents on the sampling results Thursday. Seneca declined to reveal the nature of the contamination. He says EPA will sample the wells again in July.

The Chesapeake well spilled thousands of gallons of salty, chemical-laced water into fields and a stream.

health news kids science national geographic popular mechanics popular science

'Missing' Moon Dust Turns Up at St. Louis Auction (SPACE.com)

NASA has recovered a few grains of moon dust after learning that the lunar material was set to be auctioned off in St. Louis this month, federal prosecutors announced Thursday (June 23).

There's not much of the stuff ? just some residue attached to a piece of transparent tape one-eighth of an inch (3 millimeters) wide. But its origin and history are what make the dust special: It came down to Earth in July 1969 with the Apollo 11 astronauts, who were the first humans to set foot on the lunar surface.

The United States Attorney's Office for Eastern Missouri learned in early June that the moon dust was going to be auctioned off in St. Louis. NASA investigators then contacted the auction house, Regency-Superior Auctions, which withdrew the material, prosecutors said.

Officials from the U.S. Attorney's Office took possession of the tape last Friday (June 17), then handed it over to NASA. The material was returned to the agency's Johnson Space Center in Houston on Monday (June 20). [Photos: Our Changing Moon]

The federal government regards the Apollo lunar samples as national treasures. It has never knowingly given moon rocks or loose moon dust to private individuals. But no arrests have been made in this case.

The woman who consigned the tape to Regency-Superior inherited it from her late husband, who apparently acquired it in good faith, officials said. The woman's name has not been released.

"In this particular situation, there was no wrong done," said space history expert Robert Pearlman, editor of the website collectSPACE.com, which is a SPACE.com partner. "Everyone cooperated."

Selling is not a crime

It's not illegal per se to sell lunar materials, Pearlman said. It all depends on how the seller came into possession of the samples. And people have gotten a hold of moon dust legally.

For example, NASA gave Apollo astronauts the patches from the outsides of their spacesuits, which had become impregnated with lunar dust. And the agency once released from its inventory a so-called "temporary stowage bag" used on one of the Apollo flights to hold small items during the mission.

In the course of the flight, the items placed in the bag stained the interior with moon dust. When the bag was later sold during an Oct. 2000 auction, its new owner found some smatterings of the remaining moon dust inside when he opened it up, Pearlman said.

A dusty film cartridge

The moon dust to be auctioned in St. Louis this month was originally lodged in the film cartridge of a camera used by Apollo 11 astronauts, who apparently dropped it on the surface of the moon.

Back then, a NASA employee named Terry Slezak was in charge of processing the film brought back from the Apollo missions. When he opened this particular cartridge, dust poured out, getting all over his hands. Slezak thus became the non-astronaut ever to touch lunar material with his bare hands.

According to Slezak, he used a towel and some transparent tape to clear the dust off the film, the New York Times reported.

The Apollo 11 astronauts later presented Slezak with a signed commemorative poster board, complete with pictures showing a smiling Slezak holding his dusty hand up for the camera. Slezak affixed the dusty piece of tape to the poster.

"I thought that would be kind of neat," Slezak told the Times.

Slezak sold the poster at auction in 2001 for just over $25,000, Pearlman said. While Slezak was never authorized to take the dust-flecked tape, he maintains that NASA has never questioned him about the matter.

Later, the dusty tape from the poster board was cut up into tiny pieces, some of which were also put up for sale. A piece three-eighths of an inch (9 mm) wide has sold for about $6,000, and slivers the size of the one Regency-Superior was going to auction off have been offered at nearly $1,000, Pearlman said.

Moon rocks for sale?

NASA astronauts brought 842 pounds (382 kilograms) of lunar material home to Earth between 1969 and 1972, souvenirs from their Apollo moonwalking jaunts. A court has valued this stuff at $1.44 million per ounce ($50,800 per gram), based on how much those NASA missions cost.

The space agency has given small amounts of moon material to national and state governments over the years. But NASA hangs on tightly to the rest of it.

"They track it very well," Pearlman said, adding that less than 1 ounce (28 g) of the lunar samples is thought to be unaccounted for.

But moon rocks, real or fake, are circulating on the market.

Just last month, NASA officials busted a woman who was trying to sell a purported moon rock for $1.7 million. The moon rock sting went down in a Denny's restaurant in Lake Elsinore, Calif.

While the auction of this tiny tape sliver seems to be small potatoes by comparison, Pearlman said he understands why NASA works so hard to recover lunar materials.

"You can't undo precedent," Pearlman said. "They want to be able to defend when there are large missing moon rocks, if that ever comes up. So they have to respond to every report that they receive."

Preliminary analysis of the dust on the tape indicates that it likely is of lunar origin, though it will take two to three weeks to confirm this definitively, prosecutors said.

You can follow SPACE.com senior writer Mike Wall on Twitter: @michaeldwall. Follow SPACE.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.

national geographic popular mechanics popular science popular science articles popular science subscription

Video: DaVinci Surgery Robot Celebrates Its Fifth Birthday


DaVinci Makes A Wish

Everyone?s favorite surgical robot daVinci, known for his football-lacing and paper-airplane-making skills (and, like, landmark surgeries or something) is also a bit of a party animal, it seems. At an after-hours operating room party attended by all his robot friends, Blinky the Surgeonator, as he?s known at Seattle Children?s hospital, celebrated his fifth birthday. Showing off his skills, he opened his own present (a shiny new bottle of WD40) and snuffed the candles on his robot cake with his little robot claws. See Blinky take a well-earned break from surgery in the video below:

[Gizmodo]

space news web of science science science news astronomy news

2011 Invention Awards: From Waste To Water

A machine that uses exhaust heat to treat onboard sewage


Clean Machine After a weeklong cruise, a typical 3,000-passenger cruise ship may hold nearly 200,000 gallons of wastewater in toilets?a problem, inventor Namon Nassef says, that the ZLD could easily eliminate. John B. Carnett

When Namon Nassef had to buy a new engine for his boat, he saw an opportunity. He could finally install the invention he had been working on, a machine he calls the Zero Liquid Discharge Sewage Elimination System (ZLD). The device uses engine heat to oxidize and evaporate toilet, shower and galley waste.

A typical combustion engine makes use of only 30 to 35 percent of the energy contained in fuel; the rest escapes as heat through the radiator or the exhaust. The microwave-oven-size ZLD puts that exhaust heat to work. When a passenger flushes a boat?s toilet or drains the waste-containment tank, the wastewater runs through a pipe to the ZLD, which can be installed anywhere in the craft. First the waste enters the machine?s equalization tank, which grinds it into pieces a quarter of an inch or smaller in diameter. Next it moves to the homogenizer, a container with three sets of blades that dissolve solids into 0.002-inch-diameter particles. Then an injector pump pressurizes the waste stream and sprays it through a nozzle into the engine?s exhaust system as a fine aerosol.

The exhaust of an idling engine is at least 550�F, which is hot enough to flashevaporate the waste and thermally oxidize the organic materials. Quite simply, the device can break down anything organic that?s put into it. The process eliminates all odors, Nassef says, and the main by-products are carbon dioxide and clean water vapor.

How It Works: Zero Liquid Discharge: Waste flows from the boat?s toilet to an equalization tank, which breaks it into small pieces. The material next moves into the homogenizer, a container where it gets chopped into particles. The injector pump pressurizes the material and sprays it through a nozzle into the engine?s exhaust system, where the heat cleans it. �Blanddesigns.co.uk


Nassef built a ZLD prototype in 2004 from washing-machine parts and a five-gallon paint bucket. The current version, his 11th update, uses only as much energy as ten 100-watt lightbulbs, sterilizes waste without any of the harsh chemicals of other portable toilet-waste-disposal systems, and can be scaled up or down. In 2007 it earned a certificate of approval from the U.S. Coast Guard for marine sanitation devices.

Nassef is starting with boats, but the ZLD has the potential to work in just about any vehicle with hot-enough exhaust and a toilet. He?s drawn interest from RV manufacturers and the U.S. military, which often resorts to burning waste with jet fuel (at a total cost of $400 per gallon) at its forward operating bases. Another promising market is airlines, which could plug the ZLD into existing toilets, allowing some planes to shed up to 500 pounds of wastewater weight over the course of a flight.

Name: Zero Liquid Discharge
Inventor: Namon Nassef
Time: 7 years
Cost: ?Hundreds of thousands of dollars"

Astronauts

The Other 2011 Invention Awards Winners Are...

science games science illustrated science journal science magazine science news