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A color-composite and mosaic comprising image data captured by Cassini on June 12, 2016. Highlighting its 26.7º axial tilt and northern hemisphere.
Credit: NASA/JPL-Caltech/SSI. Composite by Jason Major.
N905NA - Boeing B-747-123 - NASA Shuttle Carrier Aircraft (SCA)
with shuttle "Enterprise"
at Paris LeBourget Airport (LBG) in 1983 during Aero Salon
c/n 20107 - built in 1970 for American Airlines -
modified as Shuttle Carrier Aircraft (SCA) by Boeing in 1976 -
entered service 1977 in ex American Airlines livery -
last flight with Space Shuttle (Discovery) 4/17/12 Kennedy Space Center - IAD -
In 2013, a decision was made to preserve N905NA and display it at Space Center Houston with the mockup shuttle "Independence" mounted on its back. N905NA was flown to Ellington Field where it was carefully dismantled, ferried to the Johnson Space Center in seven major pieces (a process called The Big Move), reassembled, and finally mated with the replica shuttle in August 2014
scanned from Kodachrome-slide
Originally a US Air Force RB-57, N927NA was converted to WB-57F for high altitude research. NASA brought the jet to California to observe the return of the Orion spacecraft from the Artemis mission (...and it MAY have taken part in a hypersonic missile test flight).
N712NA - Convair CV-990-30A-8 Coronado-990 - NASA
at Paris LeBourget (LBG) in June 1977
named "Galileo II"
c/n 301037 - built in 1963 for Garuda Indonesian -
operated by NASA from 1973 -
w/o 7/17/85 March AFB CA - destroyed by fire after aborted takeoff due to blown tire
last Convair CV-990 built
scanned from Kodachrome-slide
NASA 747SP Reg: N747NA another highlight from my US trip, airside at NASA hangar and ramp at Palmdale.
Rocket launch of the Space X Thuraya 4-NGS from launch pad 40 at Cape Canaveral SFS. FL. This a launch of a communications satellite built by Airbus Defense and Space for the UAEbased Yahsat. This was taken from the boat launch in Sebastian, FL.🚀
Prints and framed shots available at www.les-greenwood.pixels.com
The International Space Station, with a crew of six onboard, is seen in silhouette as it transits the Sun at roughly five miles per second during a partial solar eclipse, Monday, Aug. 21, 2017 from Ross Lake, Northern Cascades National Park, Washington. Onboard as part of Expedition 52 are: NASA astronauts Peggy Whitson, Jack Fischer, and Randy Bresnik; Russian cosmonauts Fyodor Yurchikhin and Sergey Ryazanskiy; and ESA (European Space Agency) astronaut Paolo Nespoli. A total solar eclipse swept across a narrow portion of the contiguous United States from Lincoln Beach, Oregon to Charleston, South Carolina. A partial solar eclipse was visible across the entire North American continent along with parts of South America, Africa, and Europe. Photo Credit: (NASA/Bill Ingalls)
This 747SP started life as Clipper Lindbergh in 1977 with PanAm, sold to United in 1986, retired from service in 1994, and in 1997 purchased by NASA as the next generation airborne telescope platform. Reconfigured at L3 Waco, and after ten years of major reconfiguration, flew as SOFIA for the first time in 2007. "Stratospheric Observatory for Infrared Astronomy", SOFIA, 'NASA747' departs Palmdale on flight number 8 of observing cycle 9Q.
Montebello, CA
Couple pictures from the main yard. I was shocked to see a 310 pull in from the boneyard so it's nice to see they're still using them even after franchising.
N817NA - McDonnell Douglas DC-8-72 - NASA - National Aeronautics & Space Administration Edwards CA (Dryden Flight Research Center)
c/n 46082 - built in 1969 for Alitalia as DC-8-62 -
to Braniff 1979 - 1983 -
conv. to DC-8-72 in 1986 and operated by NASA from 1986 - still active in 2021
scanned from Kodachrome-slide
Storm in the Sargasso Sea
Scientist aboard the R/V Endeavor in the Sargasso Sea put their research on hold on July 28, 2014, as a storm system brought high waves crashing onto the deck.
NASA's Ship-Aircraft Bio-Optical Research (SABOR) experiment is a coordinated ship and aircraft observation campaign off the Atlantic coast of the United States, an effort to advance space-based capabilities for monitoring microscopic plants that form the base of the marine food chain.
Read more: 1.usa.gov/WWRVzj
Credit: NASA/SABOR/Chris Armanetti, University of Rhode Island
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA video release January 19, 2012
Global temperatures have warmed significantly since 1880, the beginning of what scientists call the "modern record." At this time, the coverage provided by weather stations allowed for essentially global temperature data. As greenhouse gas emissions from energy production, industry and vehicles have increased, temperatures have climbed, most notably since the late 1970s. In this animation of temperature data from 1880-2011, reds indicate temperatures higher than the average during a baseline period of 1951-1980, while blues indicate lower temperatures than the baseline average.
(Data source: NASA Goddard Institute for Space Studies. Visualization credit: NASA Goddard Space Flight Center Scientific Visualization Studio)
To read more go to: www.nasa.gov/topics/earth/features/2011-temps.html
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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This NASA visualization for the National Climate Assessment released on May 6 shows how average temperatures in the U.S. will increase 5 to 10 degrees Fahrenheit by the end of the century if carbon dioxide emissions continue current trends. It is based on a NOAA analysis of climate model data.
The National Climate Assessment is specifically focused on providing information about the impacts of climate change on the U.S. NASA supports this effort and contributes a global perspective through its satellite missions and science. NASA scientists study global and U.S. influences on temperature, including greenhouse gases, clouds, fine particle pollution and solar activity.
NASA scientists are also studying how rising temperatures in the U.S. and around the world will impact agriculture, extreme summer heat waves and public health.
Increasing carbon dioxide emissions from human activities remains the primary driver of Earth’s rising temperatures. This summer NASA will launch the Orbiting Carbon Observatory-2 (OCO-2), to make continuous global measurements of atmospheric carbon dioxide.
To read the National Climate Assessment’s take on U.S. temperature trends, visit: nca2014.globalchange.gov/report/our-changing-climate/rece...
To learn more about the OCO-2 mission, visit: oco.jpl.nasa.gov
To learn more about other NASA missions that contribute to understanding global temperature, visit: climate.nasa.gov
To see a visualization of temperature changes projected by the National Climate Assessment, visit: go.nasa.gov/1on08V4
To learn more about NASA’s Earth science activities in 2014, visit: www.nasa.gov/earthrightnow
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA's Andromeda Fighter was designed as a defensive and offensive space fighter that could be launched from earth and return on it's own power. The craft was also designed to be launched in groups of 4 not unlike the traditional Space Shuttle. The Andromeda is manned by a crew of 3 and it's weapon systems include guided rockets which launch from the port and starboard pods as well as 30mm rocket cannon.
This was done for Tromas's Real World Starfighter Contest.
Montebello, CA
A few months ago, Moises sent me some pictures of this place and I was shocked to see practically all of NASA's oldies sitting here. I completely forgot NASA had this second yard so a few weeks later, my brother and I went to check it out. Most of the trucks look to be in decent shape for just sitting so that's good. In fact, when we went to the main yard a few minutes later, we even saw one of the 310 Heils pulling in! Haven't been out here since April so not sure what's been moved around.
Selected as NASA Picture Of The Day 9/5/2014 Thanks to all at NASA apod.nasa.gov/apod/ap140905.html
Captured over 5 nights during the month of August 2014 from my Backyard Observatory in Western Michigan using LRGB & H-Alpha filters with the QHY11 Mono CCD/Takahashi E-180.
The original image is 6676 x 4659 pixels and covers an area of sky equal to 6.8 x 4.75 degrees and includes quite a few Messier objects including M16, M17, M18, M24 and M25.
A much larger 50% annotated view of this image can be seen here
nova.astrometry.net/annotated_full/831359
Total Exposure 10 hours
Image details
Location: DownUnder Observatory, Fremont MI
Date of Shoot: August 2014
H-Alpha 360 min, 9 x 8 min bin 1x1 (for each panel)
LRGB 240 min, 6 x 2 min each bin 1x1 (for each panel)
QHY11 monochrome CCD cooled to -10C
Takahashi E-180 F2.8 Astrograph
Paramount GT-1100S German Equatorial Mount
Image Acquisition Maxim DL
Stacking and Calibrating: CCDStack
Post Processing Photoshop CS5
SOFIA, the Stratospheric Observatory for Infrared Astronomy, is a Boeing 747SP aircraft modified to carry a 2.7-meter (106-inch) reflecting telescope (with an effective diameter of 2.5 meters or 100 inches).
A swirling Eastern Pacific Ocean storm system headed for California was spotted by NOAA's GOES-West satellite on February 28. According to the National Weather Service, this storm system has the potential to bring heavy rainfall to the drought-stricken state.
The storm was captured using visible data from NOAA's GOES-West or GOES-15 satellite on Feb. 28 at 1915 UTC/11:15 a.m. PST was made into an image by NASA/NOAA's GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Md. The storm's center appeared as a tight swirl, with bands of clouds and showers already sweeping over the state extending from northern California to Baja California, Mexico.
At 11:30 a.m. PST on February 28, Bill Patzert, climatologist at NASA's Jet Propulsion Laboratory in Pasadena, Calif. said, "Right now from northern to southern California we are being battered by very heavy rain, strong winds and our coastal communities are being battered by high surf. Through the weekend we are bracing for mud and rock slides in areas that recently burned [from wildfires]. Flooding is looming up and down the state."
The National Weather Service (NWS) serving Los Angeles posted a Flood Watch for the region on Friday, February 28. The Flood Watch notes the "potential for flash flooding and debris flows for some 2013 and 2014 burn areas in Los Angeles County from this morning through Saturday evening (March 1).”
The NWS Flood Watch also noted "a very strong and dynamic storm will bring a significant amount of rain to much of southwestern California through Saturday evening. A flash flood watch has been issued for several recent burn areas in Los Angeles County due to the abundant rainfall expected. Rain rates at times are expected to range from a half inch to one inch per hour which could cause significant mud and debris flows. There will be a chance of thunderstorms with locally higher rainfall rates."
"Californians haven't seen rain and wind this powerful in 3 years," Patzert said. "By early next week, as this system moves east, this powerful system will wreak havoc causing snow and ice storms through the Midwest into the Northeast."
GOES satellites provide the kind of continuous monitoring necessary for intensive data analysis. Geostationary describes an orbit in which a satellite is always in the same position with respect to the rotating Earth. This allows GOES to hover continuously over one position on Earth's surface, appearing stationary. As a result, GOES provide a constant vigil for the atmospheric "triggers" for severe weather conditions such as tornadoes, flash floods, hail storms and hurricanes.
On a positive note, Patzert noted, "This is a nice down payment on drought recovery in the parched Western U.S."
For updated information about the storm system, visit NOAA's National Weather Service website: www.weather.gov
For more information about GOES satellites, visit: www.goes.noaa.gov/ or goes.gsfc.nasa.gov/
Rob Gutro
NASA's Goddard Space Flight Center
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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N429NA - Lockheed L-188C Electra - NASA
at Miami International Airport (MIA) in Feb. 1988
c/n 1103 - built in 1959 for the Hughes Tool Company, but ntu -
delivered to the FAA as N111 in 1961 -
to NASA National Aeronautics & Space Admin Wallops Island VA in 1979 - wfu DMA in 1995
to Neptune Aviation Services Inc. in 2004 - conv. to tanker -
to Air Spray in 2006 as C-FLJO/Tanker 88
scanned from Kodachrome-slide
On September 24 at 11:29 GMT, a magnitude 7.7 earthquake struck in south-central Pakistan at a relatively shallow depth of 20 kilometers. The earthquake occurred as the result of oblique strike-slip motion, consistent with rupture within the Eurasian tectonic plate. Tremors were felt as far away as New Delhi as well as Karachi in Pakistan. Even though the immediate area to the epicenter is sparsely populated, the majority of houses are of mud brick construction and damage is expected to be extensive. The perspective view, looking to the east, shows the location of the epicenter in Pakistan's Makran fold belt. The image is centered near 27 degrees north latitude, 65.5 degrees east longitude, and was acquired December 13, 2012.
With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched Dec. 18, 1999, on Terra. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and data products.
The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.
The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate, Washington, D.C.
More information about ASTER is available at asterweb.jpl.nasa.gov/.
Image Credit:
NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
Image Addition Date:
2013-09-24
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA release date June 21, 2011
The terminator of Mercury, shown here in color, is the line between light and dark, or day and night. On Mercury, three days are equivalent to two years, or in other words, the planet spins around its axis three times for every two orbits around the Sun. The first Mercury year of the MESSENGER mission ended on Monday, June 13, 2011.
This image was acquired as part of MDIS's color base map. The color base map is composed of WAC images taken through eight different narrow-band color filters and will cover more than 90% of Mercury's surface with an average resolution of 1 kilometer/pixel (0.6 miles/pixel). The highest-quality color images are obtained for Mercury's surface when both the spacecraft and the Sun are overhead, so these images typically are taken with viewing conditions of low incidence and emission angles.
The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MDIS is scheduled to acquire more than 75,000 images in support of MESSENGER's science goals.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Pico Rivera, CA
We stopped by NASA today and thanks to some very, very nice employees, we got a quick little tour around their yard. Thanks to Louie especially for the walk around.
Ex-LA truck that NASA got recently. They also got an ex-ESD truck (NASA AD1)
February 17, 2012: Astronomers using NASA's Hubble Space Telescope may have found evidence for a cluster of young, blue stars encircling HLX-1, one of the first intermediate-mass black holes ever discovered. Astronomers believe the black hole may once have been at the core of a now-disintegrated dwarf galaxy. The discovery of the black hole and the possible star cluster has important implications for understanding the evolution of supermassive black holes and galaxies
To read more go to: www.nasa.gov/mission_pages/hubble/science/shredded-relic....
Credit: NASA, ESA, and S. Farrell (Sydney Institute for Astronomy, University of Sydney)
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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On Jan. 20 at 2:30 p.m. EST the VIIRS instrument aboard NASA-NOAA's Suomi NPP captured this image of the winter storm moving through the central U.S.
Credits: NASA Goddard Rapid Response
The low pressure area from the Eastern Pacific Ocean moved into the western U.S. and tracked across the four corners region into Texas where NASA-NOAA's Suomi NPP satellite observed the clouds associated with the storm. The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard Suomi NPP satellite captured the visible image on January 20, 2016 at 19:30 UTC (2:30 p.m. EST) when the storm was over the central U.S. In the image, snow cover is visible in the Rockies and southern Great Lakes states.
VIIRS collects visible and infrared imagery and global observations of land, atmosphere, cryosphere and oceans.
That low pressure system located over the south central United States on Jan. 21 is expected to track east across the Tennessee Valley and will give way to a deepening coastal low pressure area. The National Weather Service said "This latter feature takes over and becomes a dominant force in setting up heavy snow bands over the Mid-Atlantic and very gusty winds."
The storm system is expected to bring an increased risk of severe weather from far southeastern Texas across southern Louisiana/Mississippi, and into the far western Florida Panhandle on Thursday, Jan. 21. That threat for severe weather will move east as the low pressure area continues heading in that direction.
The National Weather Service Weather Prediction Center in College Park, Maryland said "A potentially crippling winter storm is anticipated for portions of the mid-Atlantic Friday into early Saturday. Snowfall may approach two feet for some locations, including the Baltimore and Washington, D.C. metro areas. Farther north, there is uncertainty in snowfall for the New York City-to-Boston corridor. Farther south, significant icing is likely for portions of Kentucky and North Carolina."
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA's Goddard Space Flight Center in Greenbelt, Maryland, played a critical role in the test flight of the #Orion spacecraft on Dec. 5, 2014. Goddard's Networks Integration Center, pictured here, coordinated the communications support for both the Orion vehicle and the Delta IV rocket, ensuring complete communications coverage through NASA's Space Network and Tracking and Data Relay Satellite.
The Orion spacecraft lifted off from Cape Canaveral Air Force Station's Space Launch Complex 37 in Florida at 7:05 a.m. EST. The Orion capsule splashed down about four and a half hours later, at 11:29 a.m. EST, about 600 miles off the coast of San Diego, California. While no humans were aboard Orion for this test flight, in the future, Orion will allow humans to travel deeper into space than ever before, including an asteroid and Mars.
Credit: NASA/Goddard/Amber Jacobson
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA Unfiltered – Our First Photo NASA Social
Are you instantly on Instagram? A Flickr fanatic? If you know the difference between shutter speed and an f-stop, this NASA Social is for you. NASA is hosting an event for its photo-fanatic social media followers on the morning of Feb. 27, 2014, at NASA's Goddard Space Flight Center in Greenbelt, Md.
This NASA Social will bring 15 social media photo-gurus together at NASA Goddard to snap and share photos of where NASA's next great Earth science satellite was developed, built and tested. The Global Precipitation Measurement mission Core Observatory is the largest satellite ever built and tested at NASA Goddard.
NASA Social participants and their friends and family are also invited to attend the GPM launch party at NASA Goddard's Visitor Center. We will watch a live NASA Television broadcast of the launch of GPM from Tanegashima Space Center in Japan. The Visitor Center will be open from 12:00 p.m. until 3:00 p.m. EST, with expert presentations and family-friendly hands-on demonstrations. The launch of the GPM Core Observatory is scheduled for no earlier than 1:07 p.m. EST, Feb. 27, 2014.
More details and registration: 1.usa.gov/1fs1sRr
Credit: NASA
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Pico Rivera, CA
We stopped by NASA today and thanks to some very, very nice employees, we got a quick little tour around their yard. Thanks to Louie especially for the walk around.
1 of 3 ex-Ontario trucks. Kevin was at the same auction that these were bought from. NASA refurbished them completely all in house, from engine rebuilding to painting.
NASA image captured October 5, 2011
The Antarctic Peninsula seen from space.
Satellite: Aqua/MODIS
Credit: NASA/GSFC/Jeff Schmaltz/MODIS Land Rapid Response Team
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Landing with a tailwind on runway 12 after reportedly running low on fuel...Prestwick 10/07/14
Check out my non aviation pictures at www.flickr.com/photos/gspiccies
Just 15 minutes after its closest approach to Pluto on July 14, 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. The smooth expanse of the informally named icy plain Sputnik Planum (right) is flanked to the west (left) by rugged mountains up to 11,000 feet (3,500 meters) high, including the informally named Norgay Montes in the foreground and Hillary Montes on the skyline. To the right, east of Sputnik, rougher terrain is cut by apparent glaciers. The backlighting highlights over a dozen layers of haze in Pluto’s tenuous but distended atmosphere. The image was taken from a distance of 11,000 miles (18,000 kilometers) to Pluto; the scene is 780 miles (1,250 kilometers) wide.
Credits: NASA/JHUAPL/SwRI
Selfies for Earth Science
Where on Earth are you going to be this Earth Day? On April 22, help us celebrate our planet by snapping and sharing a pic of yourself — using the hashtag #GlobalSelfie — wherever you happen to be. Find out more about the Global Selfie at
www.nasa.gov/content/goddard/globalselfie/
Visit the Global Selfie Facebook page at
www.facebook.com/events/233952006809533/
Check out the Global Selfie Flickr group at
Artist concept of SLS launching.
Image credit: NASA
Original image:
www.nasa.gov/exploration/systems/sls/multimedia/gallery/s...
More about SLS:
www.nasa.gov/exploration/systems/sls/index.html
Space Launch System Flickr photoset:
www.flickr.com/photos/28634332@N05/sets/72157627559536895/
_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...
A general purpose two-person EVA unit, commonly used to construct, inspect or repair sections of the ISS-B.
Work boats sported second-generation manipulator arms, tentacles more precisely; the biomechanical design was found to be superior to the older jointed boom arms as the tentacle's algorithms would find the best route to the grasp point and also be capable of reaching through complex station beamwork. In effect, the workers could remain stationary with the arms found it's own way to it's target point.