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Check this out from NASA -- What divides the north from the south? It all has to do with the spin of the Earth. On Earth's surface, the equator is the dividing line, but on Earth's sky, the dividing line is the Celestial Equator -- the equator's projection onto the sky. You likely can't see the Earth's equator around you, but anyone with a clear night sky can find the Celestial Equator by watching stars move. Just locate the dividing line between stars that arc north and stars that arc south. Were you on Earth's equator, the Celestial Equator would go straight up and down. In general, the angle between the Celestial Equator and the vertical is your latitude. The featured image combines 325 photos taken every 30 seconds over 162 minutes. Taken soon after sunset earlier this month, moonlight illuminates a snowy and desolate scene in northwest Iran. The bright streak behind the lone tree is the planet Venus setting. (ift.tt/2ULvIFo)
NASA-NOAA's Suomi NPP satellite snapped this image of the blizzard approaching the U.S. East coast around 2:35 a.m. EST on Jan. 22, 2016 using the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument's Day-Night band. via NASA ift.tt/1NpA4CQ
On July 26, 2014, from 10:57 a.m. to 11:42 a.m. EDT, the moon crossed between NASA’s Solar Dynamics Observatory (SDO) and the sun, a phenomenon called a lunar transit. A lunar transit happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO's point of view. Images of the eclipse show a crisp lunar horizon, because the moon has no atmosphere that would distort light. This image shows the blended result of two SDO wavelengths - one in 304 wavelength and another in 171 wavelength. Image Credit: NASA/SDO via NASA ift.tt/1qgIT8v
This is a scale model of a building that produces anti-magnetism that cancels out the earth's magnetic field. Used for testing of equipment of people outside of the earth's magnetic field, an unknown quantity needing solving before a manned mission to Mars can happen.
What's lighting up the Cigar Galaxy? M82, as this irregular galaxy is also known, was stirred up by a recent pass near large spiral galaxy M81. This doesn't fully explain the source of the red-glowing outwardly expanding gas, however. Evidence indicates that this gas is being driven out by the combined emerging particle winds of many stars, together creating a galactic superwind. The featured photographic mosaic highlights a specific color of red light strongly emitted by ionized hydrogen gas, showing detailed filaments of this gas. The filaments extend for over 10,000 light years. The 12-million light-year distant Cigar Galaxy is the brightest galaxy in the sky in infrared light, and can be seen in visible light with a small telescope towards the constellation of the Great Bear (Ursa Major). via NASA ift.tt/20NADOn
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
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 Amena Islam/U.S. Embassy Dhaka]
NASA astronaut Kate Rubins is pictured inside of the Soyuz MS-01 spacecraft while conducting routine spacesuit checks. The Expedition 49 trio of Rubins, JAXA astronaut Takuya Onishi and cosmonaut Anatoly Ivanishin are scheduled to undock their Soyuz on Saturday, Oct. 29, and land at 11:59 p.m. EDT. via NASA ift.tt/2fnNzOH
Check this out from NASA -- What could create such a large circular shadow on the Moon? The Earth. Last week's full Moon -- the Buck Moon -- was so full that it fell almost exactly in a line with the Sun and the Earth. When that happens the Earth casts its shadow onto the Moon. The circularity of the Earth's shadow on the Moon was commented on by Aristotle and so has been noticed since at least the 4th century BC. What's new is humanity's ability to record this shadow with such high dynamic range (HDR). The featured HDR composite of last week's partial lunar eclipse combines 15 images and include an exposure as short as 1/400th of a second -- so as not to overexpose the brightest part -- and an exposure that lasted five seconds -- to bring up the dimmest part. This dimmest part -- inside Earth's umbra -- is not completely dark because some light is refracted through the Earth's atmosphere onto the Moon. A total lunar eclipse will occur next in 2021 May. (ift.tt/2JTAABc)
What is that unusual light in the sky? A common question, this particular light was not only bright but moving and expanding. It appeared just as the astrophotographer and his friend were photographing the Golden Gate Bridge in San Francisco, California against a more predictable night sky. They were not alone in seeing this unusual display -- at least hundreds of people in California reported a similar sight. The consensus of experienced sky observers was that the plume resulted from a rocket launch -- an explanation that was soon confirmed as an unpublicized test of a submarine-launched, unarmed, Trident II D5 nuclear missile. Such tests are not uncommon but do not usually occur just after sunset near a major metropolitan area -- when they are particularly noticeable to many people. Were plume images not posted to the Internet and quickly identified, such a sky spectacle might have been understood by some to be associated with more grandiose -- but incorrect -- explanations. via NASA ift.tt/1M6mZ46
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
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 Bangladesh Association of Software and Information Services (BASIS)]
NASA’s first completed Orion crew module sits atop its service module at the Neal Armstrong Operations and Checkout Facility at Kennedy Space Center in Florida. The crew and service module will be transferred together on Wednesday to another facility for fueling, before moving again for the installation of the launch abort system. At that point, the spacecraft will be complete and ready to stack on top of the Delta IV Heavy rocket that will carry it into space on its first flight in December. For that flight, Exploration Flight Test-1, Orion will travel 3,600 miles above the Earth – farther than any spacecraft built to carry people has traveled in more than 40 years – and return home at speeds of 20,000 miles per hour, while enduring temperatures near 4,000 degrees Fahrenheit. Image Credit: NASA/Rad Sinyak via NASA ift.tt/1CJrrBE
Dusty debris from periodic Comet Swift-Tuttle was swept up by planet Earth this week. Vaporized by their passage through the dense atmosphere at 59 kilometers per second, the tiny grains produced a stream of Perseid meteors. A bright, colorful Perseid meteor flash was captured during this 20 second exposure. It made its ephemeral appearance after midnight on August 12, in the moonless skies over the broad granite dome of Enchanted Rock State Natural Area, central Texas, USA. Below the Perseid meteor, trees stand in silhouette against scattered lights along the horizon and the faint Milky Way, itself cut by dark clouds of interstellar dust. via NASA ift.tt/1JWDAI4
From where do these neutrinos come? The IceCube Neutrino Observatory near the South Pole of the Earth has begun to detect nearly invisible particles of very high energy. Although these rarely-interacting neutrinos pass through much of the Earth just before being detected, where they started remains a mystery. Pictured here is IceCube's Antarctic lab accompanied by a cartoon depicting long strands of detectors frozen into the crystal clear ice below. Candidate origins for these cosmic neutrinos include the violent surroundings of supermassive black holes at the centers of distant galaxies, and tremendous stellar explosions culminating in supernovas and gamma ray bursts far across the universe. As IceCube detects increasingly more high energy neutrinos, correlations with known objects may resolve this cosmic conundrum -- or we may never know. via NASA ift.tt/1KZafJn
Pilot Doug Hurley and Mission Specialist Rex Walheim arrive on the 4th of July in antisipation for the final Space Shuttle Launch on July 8th.
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
pugetexposure.blogspot.com/2012/06/nasa-space-shuttle-tra...
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
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 Bangladesh Association of Software and Information Services (BASIS)]