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Taken on February 20, five different exposures made in rapid succession were used to created this tantalizing telephoto image. In combination, they reveal a wide range of brightness visible to the eye on that frigid evening, from the urban glow of the Quebec City skyline to the triple conjunction of Moon, Venus and Mars. Shortly after sunset the young Moon shows off its bright crescent next to brilliant Venus. Fainter Mars is near the top of the frame. Though details in the Moon's sunlit crescent are washed out, features on the dark, shadowed part of the lunar disk are remarkably clear. Still lacking city lights the lunar night is illuminated solely by earthshine, light reflected from the sunlit side of planet Earth. via NASA ift.tt/1LU3clN
The U.S. is committed to exploring space and supporting STEM education to inspire future leaders. From December 14-16, NASA's Astronaut Office Chief, Joseph M. Acaba, made an inspiring historic visit to Dhaka, sparking enthusiasm for space robotics and STEM among young minds. From interactive sessions with students to meaningful discussions with NASA Space App Challenge contestants, he inspired a new generation of space pioneers, paving the way for future collaborations between the U.S. and Bangladesh in advancing global science and technology. [Photo by U.S. Embassy Dhaka]
What's the closest active galaxy to planet Earth? That would be Centaurus A, only 11 million light-years distant. Spanning over 60,000 light-years, the peculiar elliptical galaxy is also known as NGC 5128. Forged in a collision of two otherwise normal galaxies, Centaurus A's fantastic jumble of young blue star clusters, pinkish star forming regions, and imposing dark dust lanes are seen here in remarkable detail. The colorful galaxy portrait is a composite of image data from space- and ground-based telescopes large and small. Near the galaxy's center, left over cosmic debris is steadily being consumed by a central black hole with a billion times the mass of the Sun. As in other active galaxies, that process generates the radio, X-ray, and gamma-ray energy radiated by Centaurus A. via NASA ift.tt/1HaMCSx
In mid-October 2011, NASA scientists working in Antarctica discovered a massive crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. Extending for 19 miles (30 kilometers), the crack was 260 feet (80 meters) wide and 195 feet (60 meters) deep. Eventually, the crack will extend all the way across the glacier, and calve a giant iceberg that will cover about 350 square miles (900 square kilometers). This image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NAS's Terra spacecraft was acquired Nov. 13, 2011, and covers an area of 27 by 32 miles (44 by 52 kilometers), and is located near 74.9 degrees south latitude, 101.1 degrees west longitude.
Image Credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science 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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Patrons enjoying an afternoon of STEM activities and a front row seat to a NASA In-flight Education Downlink with Astronaut Nick Hague.
The NASA Tweet Up event held at NASA Headquarters July 21, 2009 in Washington, D.C. The focus of the Tweet Up was the STS-125 (Space Shuttle) Mission. K. Megan McArthur is a member of the STS-125 crew. An estimated crowd of 200 people who follow NASA's twitter feed were in attendance.
Another cracking photo from NASA! Amazon rainforest fires causing smoke to drift across the whole of Brazil. - ift.tt/2Z9MYHv
NASA astronauts Robert Behnken, left, and Douglas Hurley listen as NASA Administrator Jim Bridenstine gives remarks after the crew arrived at the Launch and Landing Facility at Kennedy Space Center. via NASA May 21, 2020
This spring NASA researchers took to the skies to capture data about the effects of jet biofuels on aircraft emissions and contrails. In this image, NASA's DC-8 research aircraft, which had the job of burning the biofuel, leads one of the "sampling" chase aircraft across an early morning sky near NASA's Armstrong Aircraft Operations Facility in Palmdale, Calif. The science instruments on the chase aircraft, as they were flown through the DC-8's wake, were able to record more data about how the emissions mixed with air. The tests, known as Alternative Fuel Effects on Contrails and Cruise Emissions or ACCESS II, were a follow-on to flight tests done in 2013. ACCESS II confirms that the biofuel results in at least 50 percent reduction in soot emissions when burning the blended fuel as opposed to standard jet fuel. The goal of the research is to help lead to more environmentally friendly aircraft designs. > Read More Image Credit: NASA/ORAU Richard Moore via NASA ift.tt/Yboyde
NASA image acquired October 26, 2010
The storm that swept across the center of the United States on October 26 and October 27, 2010, was memorable to those who experienced it because of its strong winds, rain, hail, and widespread tornadoes. Meteorologists get excited about the storm because it set a record for the lowest pressure (not associated with a hurricane) measured over land in the continental United States. At 5:13 p.m. CDT, the weather station in Bigfork, Minnesota recorded 955.2 millibars (28.21 inches of pressure). Pressure is one indicator of a storm’s strength, and this measurement corresponds to the pressure seen in a Category 3 hurricane.
This image, taken by the GOES satellite on October 26, shows the storm system circling around the area of extreme low pressure. Such extratropical cyclones form over the United States in the spring and fall, when the temperature difference from north to south is large. Warm, high-pressure air rushes toward the cooler, low-pressure air in the north. Because the Earth is rotating, the air moving in ends up circling the area of low pressure, creating the cyclone shown in the image. The intensity of the storm is determined by the pressure difference between the center and the outer edges. Extreme low pressure in the center of the storm, therefore, is an indicator that the storm was very intense.
The animation shows the storm developing starting late on October 25 and running through October 27. The cyclone formed very quickly on October 26, taking a distinctive comma shape as the day went on. The storm developed so quickly, in fact, that it is classified as a bomb, an extremely fast developing storm (dropping at least one millibar of pressure per hour for 24 hours), more common over water than land.
The storm was also huge. Though the area of low pressure is centered over the Upper Midwest, the storm reached from the Gulf of Mexico into Canada, and from the Rocky Mountains to the Atlantic Ocean.
Extratropical cyclones bring an array of unsettled weather, including strong wind, rain, hail, and tornadoes, and this cyclone brought all of that. On October 26–27, winds gusted up to 78 miles per hour in Michigan, with high winds throughout the Midwest. The National Weather Service reported 61 tornadoes over the two days. Heavy snow also fell in the north.
NASA Earth Observatory imagery created by Jesse Allen, using imagery provided courtesy of the NASA GOES Project Science Office. Caption by Holli RIebeek.
Instrument: GOES
Credit: NASA Earth Observatory
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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Astronaut Stephanie Wilson visits Austin Community College on Wednesday, April 24, 2019, as part of NASA’s Destination Station tour, which provides guests the opportunity to explore the history of space exploration and learn about NASA’s work to provide technological advances to improve life on Earth.
Taking part in the Safari 2000 project in Pietersburg, South Africa
SAFARI 2000 – Pietersberg, 2000
The Southern African Regional Science Initiative (SAFARI 2000) project was an international science initiative to study the linkages between land and atmosphere processes conducted from 1999-2001 in the southern African region. In addition, SAFARI 2000 examined the relationship of biogenic, pyrogenic, and anthropogenic emissions and the consequences of their deposition to the functioning of the biogeophysical and biogeochemical systems of southern Africa.
During September 2000 NASA flew an ER-2 out of Polokwane, also known as Pietersburg. The ER2 carried a number of imaging instruments and was accompanied by low level in situ measurements conducted from a University of Washington C-580. Flying took place over South Africa, Namibia, Botswana, Mozambique and Zambia. The project was supported and supplied by a USAF C-141 and K -135 from March AFB. The single seater ER-2 flew across the Atlantic from Recife Brazil.
daac.ornl.gov/cgi-bin/dataset_lister.pl?p=18
All Photos: Courtesy of Frank Eckardt
Get out your red/blue glasses and check out this awesome stereo view of another world. The scene was recorded by Apollo 17 mission commander Eugene Cernan on December 11, 1972, one orbit before descending to land on the Moon. The stereo anaglyph was assembled from two photographs (AS17-147-22465, AS17-147-22466) captured from his vantage point on board the Lunar Module Challenger as he and Dr. Harrison Schmitt flew over Apollo 17's landing site in the Taurus-Littrow Valley. The broad, sunlit face of the mountain dubbed South Massif rises near the center of the frame, above the dark floor of Taurus-Littrow to its left. Beyond the mountains, toward the lunar limb, lies the Moon's Mare Serenitatis. Piloted by Ron Evans, the Command Module America is visible in orbit in the foreground against the South Massif's peak. via NASA ift.tt/2HDT86z
Taking part in the Safari 2000 project in Pietersburg, South Africa
SAFARI 2000 – Pietersberg, 2000
The Southern African Regional Science Initiative (SAFARI 2000) project was an international science initiative to study the linkages between land and atmosphere processes conducted from 1999-2001 in the southern African region. In addition, SAFARI 2000 examined the relationship of biogenic, pyrogenic, and anthropogenic emissions and the consequences of their deposition to the functioning of the biogeophysical and biogeochemical systems of southern Africa.
During September 2000 NASA flew an ER-2 out of Polokwane, also known as Pietersburg. The ER2 carried a number of imaging instruments and was accompanied by low level in situ measurements conducted from a University of Washington C-580. Flying took place over South Africa, Namibia, Botswana, Mozambique and Zambia. The project was supported and supplied by a USAF C-141 and K -135 from March AFB. The single seater ER-2 flew across the Atlantic from Recife Brazil.
daac.ornl.gov/cgi-bin/dataset_lister.pl?p=18
All Photos: Courtesy of Frank Eckardt
Researcher in Electromagnetic and Sensor Branch at NASA Langley Ken Dudley rests his hands over the SansEC sensors which can act similar to human skin in detecting problems for aircrafts, inflatable devices and other space travel devices. Thursday, June 23, 2016.
Now at Ceres, Dawn's camera recorded this closer view of the dwarf planet's northern hemisphere and one of its mysterious bright spots on May 4. A sunlit portrait of a small, dark world about 950 kilometers in diameter, the image is part of a planned sequence taken from the solar-powered spacecraft's 15-day long RC3 mapping orbit at a distance of 13,600 kilometers (8,400 miles). The animated sequence shows Ceres' rotation, its north pole at the top of the frame. Imaged by Hubble in 2004 and then by Dawn as it approached Ceres in 2015, the bright spot itself is revealed to be made up of smaller spots of reflective material that could be exposed ice glinting in the sunlight. On Saturday, Dawn's ion propulsion system was turned on to spiral the spacecraft into a closer 4,350-kilometer orbit by June 6. Of course another unexplored dwarf planet, Pluto, is expecting the arrival of a visitor from Earth, the New Horizons spacecraft, by mid-July. via NASA ift.tt/1Izrjt8
The VIIRS instrument on NASA-NOAA’s Suomi NPP satellite captured a thermal image of Hurricane Maria on Sept. 20 at 2:12 a.m. EDT. The image showed very cold cloud top temperatures in the powerful thunderstorms in Maria’s eyewall. Maria’s eye was just east of the American Virgin Islands, and its northwestern quadrant stretched over Puerto Rico. via NASA go.nasa.gov/2yqikZC
Roll 245 Elite Chrome 100 -24 Saturn V Rocket Stage 2, Apollo/Saturn V Center – Kennedy Space Center, 405 Nasa Parkway W, Merritt Island, Brevard, FL. April 29, 2008. Decimal degrees: 28.526009, -80.679184
NASA image acquired December 17, 2010
In mid-December 2010, suspended sediments transformed the southern end of Lake Michigan. Ranging in color from brown to green, the sediment filled the surface waters along the southern coastline and formed a long, curving tendril extending toward the middle of the lake. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured these natural-color images on December 17, 2010 (top), and December 10, 2010 (bottom).
Such sediment clouds are not uncommon in Lake Michigan, where winds influence lake circulation patterns. A scientificpaper published in 2007 described a model of the circulation, noting that while the suspended particles mostly arise from lake-bottom sediments along the western shoreline, they tend to accumulate on the eastern side. When northerly winds blow, two circulation gyres, rotating in opposite directions, transport sediment along the southern shoreline. As the northerly winds die down, the counterclockwise gyre predominates, and the smaller, clockwise gyre dissipates. Clear water—an apparent remnant of the small clockwise gyre—continues to interrupt the sediment plume.
George Leshkevich, a researcher with the U.S. National Oceanic and Atmospheric Administration, explains that the wind-driven gyres erode lacustrine clay (very fine lakebed sediment) on the western shore before transporting it, along with re-suspended lake sediments, to the eastern shore. On the eastern side, the gyre encounters a shoreline bulge that pushes it toward the lake’s central southern basin, where it deposits the sediments.
The sediment plume on December 17 followed a windy weather front in the region on December 16.
NASA image courtesy MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
Instrument: Aqua - MODIS
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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To read more about this image go to: earthobservatory.nasa.gov/IOTD/view.php?id=48511
534 days, 2 hours, 49 minutes and counting. NASA astronaut Peggy Whitson flew through the standing record for cumulative time spent in space by a U.S. astronaut at 1:27 a.m. EDT on April 24, 2017, and with the recent extension of her stay at the International Space Station, she has five months to rack up a new one. via NASA ift.tt/2pcSZQM
I was invited to the NASA Tweetup for the GRAIL launch, which is tomorrow. Lots of fun stuff for us today.
Boeing Field
King County International Airport
June 30th, 2012
1st of 3 Supper Guppy Flights with major sections NASA's Shuttle Trainer arrives at Boeing Field
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Artist concept of NASA’s Space Launch System (SLS) 70-metric-ton configuration launching to space. via NASA go.nasa.gov/1M8tP65