Tuesday, March 30, 2010

The strength of Pete Conrad Lives on at improvement Summit

The student team from Monta Vista High School in Cupertino
A lunar habitat module, paper that captures sound as energy and a drug delivery system for use in space. What do these inventions have in common? They’re all concepts being developed for commercialization by high school students competing in the Conrad Foundation’s Innovation Summit.

The summit is being held April 8-10, 2010 at NASA’s Ames Research Center, Moffett Field, Calif. The "Spirit of Innovation" award is in honor of the late Charles 'Pete' Conrad, a highly decorated naval aviator and astronaut who flew Gemini V, Gemini XI, commanded Apollo XII and was the third person to walk on the moon. Conrad went on to fly Skylab, our first space station. He received a Congressional Space Medal of Honor for his work on Skylab.

Nancy Conrad, wife of the late Pete Conrad, serves as chairman of the Conrad Foundation. She formed the program to provide high school students with an understanding of science and technology and give them an opportunity to solve real world problems through innovation and entrepreneurship.

During the three-day event, 25 teams from all over the U.S. present their ideas to a panel of experts similar to the way start-up entrepreneurs "pitch" to potential investors. The teams create an online portfolio (videos, blog and "company" logo) to present to venture capitalists, entrepreneurs and scientists.

Winning teams receive an opportunity to commercialize the technology and $5,000 in seed money to further develop the product.

"Our goal is to excite students about science, technology and innovation by connecting them with top entrepreneurs, scientists and industry leaders," said Joshua Neubert, executive director for the Conrad Foundation.

Niveditha Jayasekar, a student from Monta Vista High School in Cupertino, Calif., said she became fascinated with nanotechnology as early as the sixth grade. Jayasekar and her four teammates are using a patented nanotechnology developed by NASA scientist Dr. David Loftus to deliver pharmaceuticals in microgravity. The team hopes the product could lead to future breakthroughs in the field of space medicine.

Thursday, March 25, 2010

NASA Astrobiology Institute ‘Removes Walls’ for Virtual Conference

A virtual "Workshop Without Walls" conference hosted last week by the NASA Astrobiology Institute (NAI) drew more than 170 registrants from 21 states and 16 foreign countries.

Entitled "The Organic Continuum from the Interstellar Medium to the Early Earth," the two-day workshop held March 11-12, 2010 was organized by George Cody, leader of the NAI's Carnegie Institution of Washington team and Doug Whittet, leader of the NAI’s team at the Rensselaer Polytechnic Institute, Troy, New York.

Among the countries represented at the workshop were Canada, Mexico, six western European nations, Ukraine, India, South Korea, Japan, Australia, Brazil, Colombia, and Uruguay.

Dale Cruikshank and David Des Marais at NASA Ames Research Center talk to George Cody at the Carnegie Institution of Washington and other videoconferencing rooms at research sites across the country.

"The Workshop was in many ways a realization of the original vision of the virtual institute,"said Carl Pilcher, director of the NAI. "When the NAI began 12 years ago, we envisioned scientists interacting seamlessly at a distance. But the technology and the culture weren't ready. Today the technology works beautifully, and people have come to see this as the wave of the future. This workshop demonstrated that the future has arrived."

A total of 33 scientific talks were presented during the workshop, with interactive question and answer capability provided for the participants at eight sites equipped with high definition video and audio, and streaming with real-time question submission through the Adobe Connect web interface.

"The advances in technology that made this meeting possible have been paralleled by remarkable developments in the research that drives the science," Whittet said. "The benefit in terms of scientific knowledge gained and dollars expended by participants is likely unprecedented," added Cody.

According to Cody, the conference was "an experiment." Most participants categorized their experience level with remote collaborative technologies as beginner or intermediate, and a few had no prior experience at all.

Despite this, participants reported the experiment was a great success. "I was not expecting to have the same intellectual experience as I normally do at conferences…but after this conference, I do have that same sense of having been to a "real" conference,” adding, "this was very fulfilling for me professionally," said one participant.

Locations of participants ranged from a conference room in a major city with high-speed connectivity and professional videoconferencing equipment, to a home office in a small town with a laptop and home-based Internet connection.

"Over the course of the conference, I actually came to be unaware of the conference as being at multiple venues,"Cody said, "…the difference that high definition, high band-width videoconferencing makes is remarkable. Clear face-to-face contact with no time lag in either visual or audio was the essential part. Evidently the difference between 100 feet and 3000 miles is not all that great."

Wednesday, March 24, 2010

NASA's Spitzer Unearths Primitive Black Holes

Astronomers have come across what appear to be two of the earliest and most primitive supermassive black holes known. The discovery, based largely on observations from NASA's Spitzer Space Telescope, will provide a better understanding of the roots of our universe, and how the very first black holes, galaxies and stars came to be.

"We have found what are likely first-generation quasars, born in a dust-free medium and at the earliest stages of evolution," said Linhua Jiang of the University of Arizona, Tucson. Jiang is the lead author of a paper announcing the findings in the March 18 issue of Nature.


Black holes are beastly distortions of space and time. The most massive and active ones lurk at the cores of galaxies, and are usually surrounded by doughnut-shaped structures of dust and gas that feed and sustain the growing black holes. These hungry, supermassive black holes are called quasars.

As grimy and unkempt as our present-day universe is today, scientists believe the very early universe didn't have any dust -- which tells them that the most primitive quasars should also be dust-free. But nobody had seen such immaculate quasars -- until now. Spitzer has identified two -- the smallest on record -- about 13 billion light-years away from Earth.

The quasars, called J0005-0006 and J0303-0019, were first unveiled in visible light using data from the Sloan Digital Sky Survey. That discovery team, which included Jiang, was led by Xiaohui Fan, a coauthor of the recent paper at the University of Arizona. NASA's Chandra X-ray Observatory had also observed X-rays from one of the objects. X-rays, ultraviolet and optical light stream out from quasars as the gas surrounding them is swallowed.

"Quasars emit an enormous amount of light, making them detectable literally at the edge of the observable universe," said Fan.

When Jiang and his colleagues set out to observe J0005-0006 and J0303-0019 with Spitzer between 2006 and 2009, their targets didn't stand out much from the usual quasar bunch. Spitzer measured infrared light from the objects along with 19 others, all belonging to a class of the most distant quasars known. Each quasar is anchored by a supermassive black hole weighing more than 100 million suns.

Tuesday, March 23, 2010

Shuttle Detector at Heart of Volcano Alert System


As Tim Griffin and his team were working on better ways to detect hazardous gases on the shuttle launch pad, they found out they also could build something to find hazardous gases venting from a volcano.

That means they may be only a short time away from building an early warning system for volcano eruptions -- a system that could give those near an active cone days or more to evacuate to safety.

"There are all kinds of volcano eruptions, some have all kinds of gases and some don't have any gases," Griffin said. "The long-term idea for this is that we'd be able to characterize the volcanoes. Then if the volcano becomes more active, we can get a better idea of what's going on, how active it is, (and) do we think it's going to be a violent eruption or mainly gases coming out?"

Griffin, who is the chief of NASA Kennedy Space Center's Chemical Analysis Branch and holds a Ph.D. in chemistry, never studied volcanoes. Instead, his group's goal was to shrink the leak detection system at the launch pad from the size of three refrigerators to something that could be carried by hand, in a car or perhaps inside a spacecraft.

"This project started off as a way to push the boundaries with our shuttle system," said Richard Arkin of ASRC Aerospace, the detector's co-designer. "We wanted to make it smaller, more powerful and lighter while still maintaining operational abilities and maintenance."

Parts of the miniaturization work were easy, such as going from numerous sampling ports required at the pad to a single port for the smaller machine. Other aspects, such as building smaller pumps and other components, required innovation and invention. In both, a mass spectrometer is used to find out what chemicals are present in the air.

They also set out to make the unit relatively autonomous, but still reliable and hearty.

At this point, the detector weighs in at 75 pounds. It stands about 9 inches tall and its footprint is a bit larger than a backpack. In fact, one of the goals of the project is to make it small enough to be carried in a backpack.

Griffin was talking about some of the work involved in chemical analysis at a conference when officials from Costa Rica's scientific program asked about applying the technology to the volcanic studies. It started to look like a natural fit.

Costa Rica proved a good testing ground for the equipment because most of the population lives around or near four active volcanoes. They don't worry only about sudden eruptions, but also high concentrations of carbon dioxide the volcanoes vent. The gas tends to kill all vegetation and livestock near the venting areas, but people can't see the carbon dioxide.

The detector showed a way to find out where the gas pockets are and how they change. The team flew the detector on three different kinds of airplanes, where it modeled the chemicals in volcanic plumes in three dimensions, a level of precision that astonished Arkin.

"That was something that I never thought about doing," Arkin said.

The team also put the detector in the backseat of a car and drove it through Costa Rican cities to sample the air and also carried it into the volcanoes by hand. In the future, Griffin wants to load it inside drones so the detection system can fly directly into the plumes of erupting mountains without endangering a pilot.

The results are expected to provide more information to help researchers pinpoint what volcanoes are doing at any given time, and when or if they might be about to spew.

Wednesday, March 17, 2010

Winds of Change: How Black Holes May Shape Galaxies

New observations from NASA's Chandra X-ray Observatory provide evidence for powerful winds blowing away from the vicinity of a supermassive black hole in a nearby galaxy. This discovery indicates that "average" supermassive black holes may play an important role in the evolution of the galaxies in which they reside.

For years, astronomers have known that a supermassive black hole grow in parallel with its host galaxy. And, it has long been suspected that material blown away from a black hole -- as opposed to the fraction of material that falls into it -- alters the evolution of its host galaxy.

A key question is whether such "black hole blowback" typically delivers enough power to have a significant impact. Powerful relativistic jets shot away from the biggest supermassive black holes in large, central galaxies in clusters like Perseus are seen to shape their host galaxies, but these are rare. What about less powerful, less focused galaxy-scale winds that should be much more common?

"We're more interested here in seeing what an "average"-sized supermassive black hole can do to its galaxy, not the few, really big ones in the biggest galaxies," said Dan Evans of the Massachusetts Institute of Technology who presented these results at the High Energy Astrophysics Division of the American Astronomical Society meeting in Kona, Hawaii.

Evans and his colleagues used Chandra for five days to observe NGC 1068, one of the nearest and brightest galaxies containing a rapidly growing supermassive black hole. This black hole is only about twice as massive as the one in the center of our Galaxy, which is considered to be a rather ordinary size.

The X-ray images and spectra obtained using Chandra's High Energy Transmission Grating Spectrometer showed that a strong wind is being driven away from the center of NGC 1068 at a rate of about a million miles per hour. This wind is likely generated as surrounding gas is accelerated and heated as it swirls toward the black hole. A portion of the gas is pulled into the black hole, but some of it is blown away. High energy X-rays produced by the gas near the black hole heat the ouflowing gas, causing it to glow at lower X-ray energies.

Tuesday, March 16, 2010

Crew Members Prep for Undocking, Future Arrivals

Flight Engineer Soichi Noguchi performs maintenance on the cooling loops in the U.S. spacesuits housed in the International Space Station’s Quest airlock
NASA
- Soaring high over the Earth in the International Space Station, the astronauts and cosmonauts of the Expedition 22 crew began a new week Monday, the final week in space for two of their number.

Commander Jeff Williams and Flight Engineer Maxim Suraev will depart the station Thursday aboard the Soyuz TMA-16 spacecraft. They will undock from the orbiting complex and take a three-and-a-half-hour ride that will culminate in a parachute-assisted landing on the steppe of Kazakhstan early that morning.

Williams and Suraev began their final week in orbit by testing the Soyuz spacecraft’s motion control system and recharging the satellite telephone they will carry with them in the unlikely event that they land off course in the barren landing region and need to contact search and recovery forces. They also spent three hours going over procedures for their homeward flight with specialists on the ground.

As members of the Expedition 21 and 22 crews, Williams and Suraev will have spent 169 days in space. Including his time on the Expedition 13 and STS-101 crews, this will give Williams a total of 362 days in space, placing him fourth on the all-time U.S. list of space travelers behind Peggy Whitson with 377 days, Mike Foale with 374 and Mike Fincke with 366. Williams will be 26th on the all-time endurance list for all space travelers.

Expedition 22 Flight Engineers Soichi Noguchi, T.J. Creamer and Oleg Kotov will continue their stay on the station becoming the new Expedition 23 crew. Kotov will become the new station commander when the departing Williams enters the Soyuz vehicle and closes the hatch.

On April 4, Expedition 23 will expand to a six-member crew. Arriving in the Soyuz TMA-18 spacecraft will be new station crew members Alexander Skvortsov, Tracy Caldwell Dyson and Mikhail Kornienko.

On April 7, space shuttle Discovery is scheduled to arrive for a thirteen day mission to supply the station with new science racks and ammonia tanks. STS-131 will feature three spacewalks and the delivery of the Leonardo Multi-Purpose Logistics Module.

In preparation for the joint spacewalks to be performed during STS-131, Creamer and Noguchi packed up equipment for Discovery to return to Earth and Noguchi performed maintenance on the cooling loops in the U.S. spacesuits housed in the station’s Quest airlock.

Controllers on the ground operated Canadarm2, the station’s robotic arm, to remove the Special Purpose Dextrous Manipulator, known as Dextre, from the Mobile Base System (MBS) on the complex’s truss structure. Tuesday they will move it to the outside of the Destiny laboratory in order to make the MBS available for use during STS-131.

Friday, March 12, 2010

Bursting at the Seams


Dramatic plumes, both large and small, spray water ice out from many locations along the famed 'tiger stripes' near the south pole of Saturn's moon Enceladus. The tiger stripes are fissures that spray icy particles, water vapor and organic compounds.

This mosaic was created from two high-resolution images that were captured by the narrow-angle camera when NASA's Cassini spacecraft flew past Enceladus and through the jets on Nov. 21, 2009. Imaging the jets over time will allow Cassini scientists to study the consistency of their activity.

Wednesday, March 10, 2010

Go into a NASA Clean Room Daily with the Webb Telescope via NASA's 'Webb-cam'

How often can you say that you've seen the components of a space telescope being worked on at NASA? The answer is probably "rarely, if ever." However, thanks to NASA's Goddard Space Flight Center in Greenbelt, Md., that has now changed.

Web cameras in Goddard's largest clean room are now providing daily, live coverage of work being done on components of the upcoming James Webb Space Telescope. You could say they're "Webb-cams" and they provide one image per minute so people can see what happens behind the scenes. Of course, the work happens during regular working hours, so there may not be action on screen all the time.

John Decker, Webb telescope Deputy Project Manager at NASA Goddard was the motivator in getting the "Webb-cam" up and running. "I thought it would be a great way for everyone to see what happens behind the scenes as components of this exciting new space telescope are being tested and coming together here at NASA Goddard," Decker said.

The Webb telescope project is managed at Goddard, and several components of this next generation space telescope are already in a clean room here.

Goddard's High Bay Clean Room
The James Webb Space Telescope is the next-generation premier space observatory, exploring deep space phenomena from distant galaxies to nearby planets and stars. The Webb telescope will give scientists clues about the formation of the universe and the evolution of our own solar system, from the first light after the Big Bang to the formation of star systems capable of supporting life on planets like Earth. The telescope is a joint project of NASA, the European Space Agency, and the Canadian Space Agency and is expected to launch in 2014.

Clean rooms are like operating rooms in hospitals. They are pristine areas kept as free as possible of contaminants that could interfere with delicate technology. There are several clean rooms at NASA Goddard.

Anyone that works in a clean room, such as engineers and scientists, have to wear sterile bodysuits, head covers, gloves, boots, and face masks. It takes about 10 to 15 minutes to get dressed before entering, and it's important because even one speck of dust or a fingerprint could severely damage the sensitive telescope components and instruments. Clean rooms act to filter out these harmful contaminants through a unique ventilation system and an entire wall of air filters.

The clean room ventilation system circulates almost one million cubic feet of air every minute through 9,000 square feet of HEPA filters located along one wall. The HEPA filters are specially designed to last several decades. All of these features provide the largest Goddard clean room with a Class-10,000 rating. That means any cubic foot of air in the clean room has no more than 10,000 particles floating around in it larger than 0.5 microns. A micron is one-millionth of a meter, and typical “outside” air has millions of such particles. A human hair is between 20 and 200 microns wide.

Monday, March 08, 2010

Alternative Energy Crops in Space

Fruits of J. curcasSeeds of J. curcas. Seeds are pressed for oil extraction, which can be utilized as biofuel














What if space held the key to producing alternative energy crops on Earth? That's what researchers are hoping to find in a new experiment on the International Space Station.

NASA - The experiment, National Lab Pathfinder-Cells 3, is aimed at learning whether microgravity can help jatropha curcas plant cells grow faster to produce biofuel, or renewable fuel derived from biological matter. Jatropha is known to produce high quality oil that can be converted into an alternative energy fuel, or biofuel.

By studying the effects of microgravity on jatropha cells, researchers hope to accelerate the cultivation of the plant for commercial use by improving characteristics such as cell structure, growth and development. This is the first study to assess the effects of microgravity on cells of a biofuel plant.

"As the search for alternate energy sources has become a top priority, the results from this study could add value for commercialization of a new product,” said Wagner Vendrame, principal investigator for the experiment at the University of Florida in Homestead. "Our goal is to verify if microgravity will induce any significant changes in the cells that could affect plant growth and development back on Earth."

Launched on space shuttle Endeavour’s STS-130 mission in February, cell cultures of jatropha were sent to the space station in special flasks containing nutrients and vitamins. The cells will be exposed to microgravity until they return to Earth aboard space shuttle Discovery's STS-131 mission targeted for April.

Fluid Processing Apparatus (FPA) containing cell suspensions of J. curcas. The FPAs will be assembled into the Group Activation Pack (GAP), which will be transported to the ISS for microgravity studies. Image credit: Dr. Wagner A Vendrame, University of Florida at HomesteadFor comparison studies of how fast the cultures grow, a replicated set of samples are being maintained at the University of Florida's Tropical Research and Education Center in Homestead.

"Watching the space shuttle go up carrying a little piece of my work is an indescribable experience," said Vendrame. "Knowing that my experiment could contribute to creating a sustainable means for biofuel production on Earth, and therefore making this a better world adds special value to the work."

Sunday, March 07, 2010

NASA’s International Space Station Program Wins Collier Trophy

International Space Station
The International Space Station Program has won the 2009 Collier Trophy, which is considered the top award in aviation. The National Aeronautic Association bestows the award annually to recognize the greatest achievement in aeronautics or astronautics in America.

“We are honored to receive this prestigious award,” said Bill Gerstenmaier, associate administrator for NASA’s Space Operations Mission Directorate. “We're proud of our past achievements to build and operate the space station, and we're excited about the future- there's a new era ahead of potential groundbreaking scientific research aboard the station."

The International Space Station is a joint project of five space agencies and 15 countries that is nearing completion and will mark the 10th anniversary of a continuous human presence in orbit later this year. The largest and most complicated spacecraft ever built, the space station is an international, technological and political achievement that represents the latest step in humankind’s quest to explore and live in space.

Designated as a national laboratory by Congress in the 2005 NASA Authorization Act, the space station provides a research platform that takes advantage of the microgravity conditions 220 miles above the Earth’s surface across a wide variety of fields, including human life sciences, biological science, human physiology, physical and materials science, and Earth and space science.

Commander Jeff WilliamsUpon completion of assembly later this year, the station’s crew and its U.S., European, Japanese and Russian laboratory facilities will expand the pace of space-based research to unprecedented levels. Nearly 150 experiments are currently under way on the station, and more than 400 experiments have been conducted since research began nine years ago. These experiments already are leading to advances in the fight against food poisoning, new methods for delivering medicine to cancer cells and the development of more capable engines and materials for use on Earth and in space.

The international partner agencies – NASA, the Canadian Space Agency, the European Space Agency, the Japan Aerospace Exploration Agency and the Russian Federal Space Agency – provide control centers and support teams that train and launch crews to the station, provide support for systems operations and coordinate the on-orbit research 24 hours a day, 7 days a week, 365 days a year.

Now supporting a multicultural crew of six, the station has a mass of almost 800,000 pounds and a habitable volume of more than 12,000 cubic feet – approximately the size of a five-bedroom home, and uses state-of-the-art systems to generate solar electricity, recycle nearly 85 percent of its water and generate much of its own oxygen supply. Nearly 190 humans have visited the space station, which is now supporting its 22nd resident crew.