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Topic: NASA’s Langley Research Center

NASA looks into reducing the noise of a Sonic Boom for Supersonic Passenger Flight

 

Written by Frank Jennings, Jr.
NASA Glenn Research Center

NASA - National Aeronautics and Space AdministrationCleveland, OH – Since the Concorde’s final landing at London’s Heathrow Airport nearly a decade ago, commercial supersonic air travel has been as elusive as a piece of lost luggage. However, this hasn’t stopped NASA from continuing the quest to develop solutions that will help get supersonic passenger travel off the ground once more.

And, while aerospace engineers have made significant progress in their understanding of supersonic flight, one significant challenge remains: the loud sonic boom.

This rendering shows The Boeing Company's future supersonic advanced concept featuring two engines above the fuselage.  (NASA/Boeing)

This rendering shows The Boeing Company’s future supersonic advanced concept featuring two engines above the fuselage. (NASA/Boeing)

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NASA’s Global Hawk research aircraft finishes Climate Change study

 

Written by Rachel Hoover
NASA Ames Research Center

NASA - National Aeronautics and Space AdministrationMountain View, CA – NASA’s Global Hawk research aircraft returned to its base at NASA’s Armstrong Flight Research Center at Edwards Air Force Base, CA, early Friday morning March 14th, marking the completion of flights in support of this year’s Airborne Tropical Tropopause Experiment (ATTREX), a multi-year NASA airborne science campaign.

On February 13th, the autonomously operated aircraft began conducting science flights from Andersen Air Force Base on Guam in the western Pacific region on a mission to track changes in the upper atmosphere and help researchers understand how these changes affect Earth’s climate.

NASA's Global Hawk No. 872 flares for landing at Andersen Air Force Base on Guam to begin the 2014 ATTREX climate-change mission Jan. 17th. The two-month-long airborne science flight campaign wrapped up with the aircraft's return to NASA's Armstrong Flight Research Center March 14th. (U.S. Air Force)

NASA’s Global Hawk No. 872 flares for landing at Andersen Air Force Base on Guam to begin the 2014 ATTREX climate-change mission Jan. 17th. The two-month-long airborne science flight campaign wrapped up with the aircraft’s return to NASA’s Armstrong Flight Research Center March 14th. (U.S. Air Force)

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NASA’s Aqua and Terra Spacecraft take images of California Rim Fire endangering Yosemite National Park

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – The Rim Fire burning in and near Yosemite National Park in California continues to grow and move its way up in the record books. As of August 27th, CAL FIRE (California Department of Forestry and Fire Protection) reports that the fire, which started August 17th, had consumed nearly 180,000 acres, making it the seventh largest wildfire in California’s recorded history.

The fire is one of 10 active major wildfires burning across California as of August 27th.

Visible image of California's Rim Fire acquired Aug. 23rd, 2013 by the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra spacecraft, showing extensive, brownish smoke. The imaged area measures 236 by 215 miles (380 by 346 kilometers). (Image credit: NASA/GSFC/LaRC/JPL, MISR Team)

Visible image of California’s Rim Fire acquired Aug. 23rd, 2013 by the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA’s Terra spacecraft, showing extensive, brownish smoke. The imaged area measures 236 by 215 miles (380 by 346 kilometers). (Image credit: NASA/GSFC/LaRC/JPL, MISR Team)

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NASA’s Langley Research Center to Crash Test Helicopter for Safety Study

 

Written by Kathy Barnstorff
NASA Langley Research Center

NASA - National Aeronautics and Space AdministrationHampton, VA – Anybody who says NASA researchers don’t know how to have a smashing good time has not met a team at NASA’s Langley Research Center in Hampton, VA.

They are test engineers whose job it is to make aircraft safer by crashing them.

In late August those engineers plan to drop a 45-foot long helicopter fuselage from about 30 feet to test improved seat belts and seats and to collect crash worthiness data.

NASA's Langley Research Center engineers are scheduled to crash test a former Marine helicopter at the historic Landing and Impact Research facility. The fuselage is painted in black polka dots as part of a high speed photographic technique. (Image Credit: NASA Langley / David C. Bowman)

NASA’s Langley Research Center engineers are scheduled to crash test a former Marine helicopter at the historic Landing and Impact Research facility. The fuselage is painted in black polka dots as part of a high speed photographic technique. (Image Credit: NASA Langley / David C. Bowman)

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NASA finishes testing Cryogenic Propellant Tank to be used for future Space Exploration

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA recently completed a major space technology development milestone by successfully testing a pressurized, large cryogenic propellant tank made of composite materials. The composite tank will enable the next generation of rockets and spacecraft needed for space exploration.

Cryogenic propellants are gasses chilled to subfreezing temperatures and condensed to form highly combustible liquids, providing high-energy propulsion solutions critical to future, long-term human exploration missions beyond low-Earth orbit.

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NASA’s SAGE III to monitor the Earth’s fragile Ozone Layer

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Ozone stinks. People who breathe it gag as their lungs burn. The EPA classifies ground-level ozone as air pollution.

Yet without it, life on Earth would be impossible.

A fragile layer of ozone 25 km above Earth’s surface is all that stands between us and some of the harshest UV rays from the sun. The ozone molecule O3 blocks radiation which would otherwise burn skin and cause cancer.

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NASA’s Aeronautics Research benefits those flying this Holiday weekend

 

Written by Jim Banke
NASA’s Aeronautics Research Mission Directorate

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Traveling by air this holiday season, or any time of year? If so then you’ll be in the company of millions who are directly benefiting from the ongoing research performed by NASA’s aeronautical innovators now, and in the future.

During 2012, NASA’s Aeronautics Research Mission Directorate continued a wide range of research projects aimed at advancing the science of flight.

NASA-developed technology is onboard nearly every commercial aircraft flying today or in use at every major airport. (Image credit: NASA)

NASA-developed technology is onboard nearly every commercial aircraft flying today or in use at every major airport. (Image credit: NASA)

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NASA study shows Climate change likely hotter than current Projections

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new NASA-funded study by the National Center for Atmospheric Research, Boulder, CO, finds climate model projections that show a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise.

The findings, published today in the journal Science, could provide a breakthrough in the longstanding quest to narrow the range of global warming expected in coming decades and beyond.

Scientists used observations from two NASA satellite instruments, including relative humidity data similar to these, from the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft, to analyze how well leading global climate models reproduce observed relative humidity in Earth's tropics and subtropics. The AIRS surface relative humidity data shown here are representative only and are not from the study. Areas shown in reds and yellows are the driest; blue areas the moistest. (Image credit: NASA/JPL-Caltech)

Scientists used observations from two NASA satellite instruments, including relative humidity data similar to these, from the Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft, to analyze how well leading global climate models reproduce observed relative humidity in Earth’s tropics and subtropics. The AIRS surface relative humidity data shown here are representative only and are not from the study. Areas shown in reds and yellows are the driest; blue areas the moistest. (Image credit: NASA/JPL-Caltech)

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NASA Aeronautics Research Mission: New Ideas Sharpen Focus for Greener Aircraft

 

Written by Kathy Barnstorff
NASA Langley Research Center

NASA - National Aeronautics and Space AdministrationHampton, VA – Leaner, greener flying machines for the year 2025 are on the drawing boards of three industry teams under contract to the NASA Aeronautics Research Mission Directorate’s Environmentally Responsible Aviation Project.

Teams from The Boeing Company in Huntington Beach, CA, Lockheed Martin in Palmdale, CA, and Northrop Grumman in El Segundo, CA, have spent the last year studying how to meet NASA goals to develop technology that would allow future aircraft to burn 50 percent less fuel than aircraft that entered service in 1998 (the baseline for the study), with 75 percent fewer harmful emissions; and to shrink the size of geographic areas affected by objectionable airport noise by 83 percent.

Three proposed aircraft designs have varying levels of success in meeting tough NASA goals for reducing fuel use, emissions and noise all at the same time. (Image credit: NASA)

Three proposed aircraft designs have varying levels of success in meeting tough NASA goals for reducing fuel use, emissions and noise all at the same time. (Image credit: NASA)

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NASA Study Solves Case of Earth’s ‘Missing Energy’

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Two years ago, scientists at the National Center for Atmospheric Research in Boulder, CO, released a study claiming that inconsistencies between satellite observations of Earth’s heat and measurements of ocean heating amounted to evidence of “missing energy” in the planet’s system.

Where was it going? Or, they wondered, was something wrong with the way researchers tracked energy as it was absorbed from the sun and emitted back into space?

An international team of atmospheric scientists and oceanographers, led by Norman Loeb of NASA’s Langley Research Center in Hampton, VA, and including Graeme Stephens of NASA’s Jet Propulsion Laboratory in Pasadena, CA, set out to investigate the mystery.

Clouds play a vital role in Earth's energy balance, cooling or warming Earth's surface depending on their type. This painting, "Cumulus Congestus," by JPL's Graeme Stephens, principal investigator of NASA's CloudSat mission, depicts cumulus clouds, which transport energy away from Earth's surface. (Image credit: Graeme Stephens)

Clouds play a vital role in Earth's energy balance, cooling or warming Earth's surface depending on their type. This painting, "Cumulus Congestus," by JPL's Graeme Stephens, principal investigator of NASA's CloudSat mission, depicts cumulus clouds, which transport energy away from Earth's surface. (Image credit: Graeme Stephens)

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