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The sun emitted a significant solar flare, peaking at 1:48 p.m. EDT March 29, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. This flare is classified as an X.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength. An X2 is twice as intense as an X1, an X3 is three times as intense, etc. This image blends two wavelengths of light: 304 and 171 Angstroms, which help scientists observe the lower levels of the sun's atmosphere. Image Credit: NASA/SDO #nasa #flare #solarflare #heliophysics #sun #solar #sdo #nasasdo; -
NASA recently tested a full-sized tail from a 757 commercial aircraft that was modified and equipped with tiny jets called "sweeping jet actuators" to blow air across the rudder surfaces. The test vertical tail is an actual 757 tail that came out of an aircraft bone yard in Arizona and was refurbished into a wind tunnel model. The tunnel hosted the 26-foot 757 tail for a series of tests of an innovative Active Flow Control system that one day might allow airplane builders to design smaller tails, which would reduce weight and drag, and help improve fuel efficiency. The “flow control” comes from the actuators, which are devices that essentially blow air in a sweeping motion along the span of the tail and manipulate that flow of air. The image was taken inside the National Full-Scale Aerodynamic Complex, a massive wind tunnel located at NASA’s Ames Research Center in Moffett, Ca. In the image, an engineer braces himself against the strong winds in the tunnel as he holds a wand emitting a stream of smoke that’s used to visualize “in flight” air flow across the tail. Actuator technology will be installed for flight tests on the tail of Boeing’s ecoDemonstrator program 757 flight test aircraft in early 2015 as part of an agreement with NASA. Image Credit: NASA/Dominic Hart #nasaaero #aviation #aircraft #airplane #planes #plane #nasa #aeronautics; -
As seen on #Cosmos: A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes. They are invisible. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars. Seen here is an artist's drawing of a black hole named Cygnus X-1. It formed when a large star caved in. This black hole pulls matter from blue star beside it. Image Credit: NASA/CXC/M.Weiss #nasa #blackhole #space #universe #cosmos #cygnusx1; -
As seen on #Cosmos: Astronomers have pushed NASA's Hubble Space Telescope to its limits by finding what is likely to be the most distant object ever seen in the universe. The object's light traveled 13.2 billion years to reach Hubble, roughly 150 million years longer than the previous record holder. The farthest and one of the very earliest galaxies ever seen in the universe appears as a faint red blob in this ultra-deep–field exposure taken with NASA's Hubble Space Telescope. This is the deepest infrared image taken of the universe. Based on the object's color, astronomers believe it is 13.2 billion light-years away. Credit: NASA, ESA, G. Illingworth (University of California, Santa Cruz), R. Bouwens (University of California, Santa Cruz, and Leiden University), and the HUDF09 Team #nasa #hubble #universe #cosmos #space #galaxy; -
As seen on #Cosmos: This image shows a composite view of the Crab nebula, an iconic supernova remnant in our Milky Way galaxy, as viewed by the Herschel Space Observatory and the Hubble Space Telescope. Herschel is a European Space Agency (ESA) mission with important NASA contributions, and Hubble is a NASA mission with important ESA contributions. A wispy and filamentary cloud of gas and dust, the Crab nebula is the remnant of a supernova explosion that was observed by Chinese astronomers in the year 1054. The image combines Hubble's view of the nebula at visible wavelengths, obtained using three different filters sensitive to the emission from oxygen and sulphur ions and is shown here in blue. Herschel's far-infrared image reveals the emission from dust in the nebula and is shown here in red. While studying the dust content of the Crab nebula with Herschel, a team of astronomers have detected emission lines from argon hydride, a molecular ion containing the noble gas argon. This is the first detection of a noble-gas based compound in space. The Herschel image is based on data taken with the Photoconductor Array Camera and Spectrometer (PACS) instrument at a wavelength of 70 microns; the Hubble image is based on archival data from the Wide Field and Planetary Camera 2 (WFPC2). Image credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; NASA, ESA and Allison Loll/Jeff Hester (Arizona State University) #nasa #space #universe #crabnebula #nebula #milkyway #herschel;
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Put up your dukes! Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) clowns with Robonaut 2, a humanoid robot, in the U.S. lab Destiny while preparing for a public TV event. The Soyuz TMA-12M spacecraft launched and docked this week. The station's newest arrivals spent two days in space on their trek to join their orbiting crewmates. Commander Koichi Wakata and Flight Engineers Rick Mastracchio and Mikhail Tyurin greeted new arrivals Flight Engineers Alexander Skvortsov, Steve Swanson and Oleg Artemyev. The sextet then gathered inside the Zvezda service module for a welcoming ceremony with words of congratulations from family members and mission officials. Afterward the crew got together for a safety briefing to familiarize themselves with the station's emergency gear, escape routes and team member roles. The entire crew was off-duty Friday as they sleep-shifted to get back into their normal schedules having stayed up late Thursday night. They will also have a light-duty weekend. Image Credit: NASA #nasa #spacestation #robots #robonaut #space #astronauts #iss #exp39 #jaxa; -
Galaxy clusters are so huge that their gravity can bend light! Clusters are some of the most massive structures that can be found in the Universe — large groups of galaxies bound together by gravity. This image from the NASA/ESA Hubble Space Telescope reveals one of these clusters, known as MACS J0454.1-0300. Each of the bright spots seen here is a galaxy, and each is home to many millions, or even billions, of stars. Astronomers have determined the mass of these clusters to be around 180 trillion times the mass of the sun. Clusters like this are so massive that their gravity can even change the behavior of space around them, bending the path of light as it travels through them, sometimes amplifying it and acting like a cosmic magnifying glass. Thanks to this effect, it is possible to see objects that are so far away from us that they would otherwise be too faint to be detected. In this case, several objects appear to be dramatically elongated and are seen as sweeping arcs to the left of this image. These are galaxies located at vast distances behind the cluster — their image has been amplified, but also distorted, as their light passes through MACS J0454.1-0300. Credit: ESA/Hubble & NASA, Acknowledgement: Nick Rose #space #nasa #hubble #esa #hst #astronomy # galaxy #universe #science; -
Shadow Portrait of Rover Opportunity on Martian Slope! Our Mars Exploration Rover Opportunity caught its own silhouette in this late-afternoon image taken by the rover's rear hazard avoidance camera. This camera is mounted low on the rover and has a wide-angle lens. The image was taken looking eastward shortly before sunset on the 3,609th Martian day, or sol, of Opportunity's work on Mars (March 20, 2014). The rover's shadow falls across a slope called the McClure-Beverlin Escarpment on the western rim of Endeavour Crater, where Opportunity is investigating rock layers for evidence about ancient environments. The scene includes a glimpse into the distance across the 14-mile-wide (22-kilometer-wide) crater. Image Credit: NASA/JPL-Caltech #rover #mars #opportunity #martian #planets #space #nasa #crater #science; -
Here's a look inside our Super Guppy, a wide-bodied cargo aircraft, that landed at the Redstone Army Airfield near Huntsville, Ala. on March 26 with a special delivery: an innovative composite rocket fuel tank. The tank was manufactured at the Boeing Developmental Center in Tukwila, Wash. The tank was unloaded from the Super Guppy, which has a hinged nose that opens and allows large cargos like the tank to be easily unloaded. After the tank was removed from the Super Guppy, it will be inspected and prepared for testing at NASA’s Marshall Space Flight Center in Huntsville, Ala. Image credit: NASA/MSFC/Emmett Given #nasa #superguppy #msfc #rocketfueltank #fueltank #planes #aviation #aircraft #space; -
Just how big is "Chamber A" at NASA's Johnson Space Center where we'll be testing the James Webb Space Telescope? Well, those aren't tiny people on the right of the door. Chamber A is really big! NASA's "Chamber A" thermal vacuum testing chamber famous for being used during Apollo missions has now been upgraded and remodeled to accommodate testing the Webb Telescope. When the next-generation space telescope was being designed, engineers had to ensure there was a place large enough to test it, considering it's as big as a tennis court. That honor fell upon the famous "Chamber A" in the thermal-vacuum test facility at NASA's Johnson Space Center in Houston, Texas. Chamber A is now the largest high-vacuum, cryogenic-optical test chamber in the world, and made famous for testing the space capsules for NASA's Apollo mission, with and without the mission crew. It is 55 feet (16.8 meters) in diameter by 90 feet (27.4 meters) tall. The door weighs 40 tons and is opened and closed hydraulically. Image credit: NASA #jwst #nasajohnson #nasa #webbtelescope #thermalvac #telescope #testing #testequipment #space;
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Our Super Guppy, a wide-bodied cargo aircraft, landed at the Redstone Army Airfield near Huntsville, Ala. on March 26 with a special delivery: an innovative composite rocket fuel tank. The tank was manufactured at the Boeing Developmental Center in Tukwila, Wash. The tank will be unloaded from the Super Guppy, which has a hinged nose that opens and allows large cargos like the tank to be easily unloaded. After the tank is removed from the Super Guppy, it will be inspected and prepared for testing at Marshall Space Flight Center in Huntsville, Ala. Image credit: NASA/MSFC/Emmett Given #nasa #tank #space #superguppy; -
Our Hubble Space Telescope image captures Mars-bound comet sprouting multiple jets! On Oct. 19, the comet will pass within 84,000 miles of Mars -- less than half the distance between Earth and our moon. The image shows the comet after image processing techniques were applied to remove the hazy glow of the coma revealing what appear to be two jets of dust coming off the location of the nucleus in opposite directions. This observation should allow astronomers to measure the direction of the nucleus’s pole, and axis of rotation. Image Credit: NASA, ESA, and J.-Y. Li (Planetary Science Institute) #hubble #hst #astronomy #nasa #space #mars #comet #science; -
Search for Seeds of Black Holes! The galaxy NGC 4395 is shown here in infrared light, captured by our Spitzer Space Telescope. This dwarf galaxy is relatively small in comparison with our Milky Way galaxy, which is nearly 1,000 times more massive. The galaxy is "bulgeless" because it lacks a large collection of stars at its center. Astronomers using NASA's Wide-field Infrared Survey Explorer, or WISE, have found more evidence that bulgeless galaxies, contrary to previous theories, do harbor supermassive black holes at their center. In this image, an actively feeding supermassive black hole resides in the galaxy's nucleus, as seen by the bright red source. The feeding supermassive black hole dominates the infrared light coming from the galaxy's center. Image credit: NASA/JPL-Caltech #blackholes #nasa #galaxy #spitzer #astronomy #wise #space #science; -
Zipping Past Earth! This image of Earth was taken during the close flyby of our Juno spacecraft on Oct. 9, 2013. It was acquired at 19:12 UT at an altitude of 1,987 miles (3,197 kilometers) - just 10 minutes before Juno's closest approach to our planet. The image is a combination of the JunoCam instrument's red, green and blue spectral filters and approximates natural color. The image is a mosaic of 82 individual frames taken as the spacecraft spun. The phote provides a view of the Argentinean coastline at upper left, with reflections, or specular highlights, off the Rio Negro, north of Golfo San Matias. Clouds cover much of Antarctica at bottom. Image credit: NASA/JPL-Caltech/MSSS #nasa #space #juno #jupiter #spacecraft #earth #science; -
A rainfall-triggered landslide near Oso, Washington sent muddy debris spilling on March 22 across the North Fork of the Stillaguamish River. The slide left an earthen dam that blocked the river, causing a barrier lake to form. The Operational Land Imager (OLI) on the Landsat 8 satellite acquired this image of landslide debris and the barrier lake on March 23, 2014. Image Credit: NASA Earth Observatory image by Jesse Allen, using Landsat data from the U.S. Geological Survey #nasa #landslide #stillaguamish #rain #earth #washington #oso #landsat #satellite #530slide;
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