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And Liftoff! NASA astronaut Jeff Williams (@astro_jeffw) is now the first American to become a three-time, long-term resident of the International Space Station (@ISS). He arrived at the orbiting laboratory at 11:09 p.m. EDT Friday, with cosmonauts Alexey Ovchinin and Oleg Skripochka of the Russian space agency Roscosmos, where they will continue important research that advances NASA's Journey to Mars. The trio launched aboard a Soyuz TMA-20M spacecraft from the Baikonur Cosmodrome in Kazakhstan at 5:26 p.m. (3:26 a.m. Saturday, March 19, Baikonur time), orbited Earth four times, and docked at the station. The hatches between the spacecraft and station opened at 12:55 a.m. Saturday, March 19. Photo Credit: NASA/Aubrey Gemignani #nasa #iss #space #spacestation #iss; -
Happy St. Patrick’s Day! Ireland is seen here from the International Space Station on a moonlit night under an amazing and ever-changing green aurora. This image was taken by NASA astronaut Terry Virts on Feb. 6, 2015. Also seen here are the United Kingdom and Scandinavia. Image Credit: NASA #stpatricksday #nasa #space #spacestation #iss #aurora #earth #ireland; -
Picturing the Sun's Magnetic Field: This illustration lays a depiction of the sun's magnetic fields over an image captured by our Solar Dynamics Observatory on March 12. The complex overlay of lines can teach scientists about the ways the sun's magnetism changes in response to the constant movement on and inside the sun. Note how the magnetic fields are densest near the bright spots visible on the sun - which are magnetically strong active regions - and many of the field lines link one active region to another. Credits: NASA/SDO/AIA/LMSAL #Nasa #space #sun #nasabeyond #astronomy #science; -
Tilted Terminator: When viewed with north pointing up, as in this image, the day-night boundary line (or terminator) cuts diagonally across Enceladus, with Saturn approaching its northern summer solstice. The lit portion on all of Saturn's large, icy moons, including Enceladus (313 miles or 504 kilometers across) and Saturn itself, is now centered on their northern hemispheres. This change of season, coupled with a new spacecraft trajectory, has progressively revealed new terrains compared to when Cassini arrived in 2004, when the southern hemisphere was more illuminated. This view captured by NASA's Cassini Mission to Saturnshows wrinkled plains that are remarkably youthful in appearance, being generally free of large impact craters. Credit: NASA/JPL-Caltech/Space Science Institute #nasa #space #saturn #cassini #enceladus #solarsystem #nasabeyond #astronomy #science; -
Moon shot! Flying 250 miles above the Earth and traveling at 17,500 mph aboard the International Space Station, astronaut Tim Kopra snapped this photo of the moon and Earth and posted it before heading off to sleep Friday night. The station is a unique place - a convergence of science, technology and human innovation that demonstrates new technologies and makes research breakthroughs not possible on Earth. It is a microgravity laboratory where an international crew live and work while orbiting our planet every 90 minutes. Image Credit: NASA #nasa #iss #spacestation #earth #moon;
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Feeling small? Here's a legion of galaxies! Peering deep into the early universe, this picturesque observation from the Hubble Space Telescope reveals thousands of colorful galaxies swimming in the inky blackness of space. A few foreground stars from our own galaxy, the Milky Way, are also visible. Containing countless galaxies of various ages, shapes and sizes, this observation is nearly as deep as the Hubble Ultra-Deep Field. In addition to showcasing the stunning beauty of the deep universe in incredible detail, this parallel field - when compared to other deep fields - will help astronomers understand how similar the universe looks in different directions. Image credit: NASA, ESA and the HST Frontier Fields team (STScI), Acknowledgement: Judy Schmidt #nasa #space #galaxy #milkyway #astronomy #hubble #hst #telescope #nasabeyond #science; -
Galaxy clusters are enormous collections of hundreds or even thousands of galaxies and vast reservoirs of hot gas embedded in massive clouds of dark matter, invisible material that does not emit or absorb light but can be detected through its gravitational effects. These cosmic giants are not merely novelties of size or girth - rather they represent pathways to understanding how our entire universe evolved in the past and where it may be heading in the future. To learn more about clusters, including how they grow via collisions, astronomers have used some of the world's most powerful telescopes, looking at different types of light. They have focused long observations with these telescopes on a half dozen galaxy clusters. The name for this galaxy cluster project is the "Frontier Fields". Here is one of these Frontier Fields galaxy clusters, featured in a multi-wavelength image. One of the most complex and distorted galaxy clusters known, it is the site of a collision between four clusters. It is located about 5.4 billion light years away from Earth. Credits: X-ray: NASA/CXC/SAO/van Weeren et al.; Optical: NASA/STScI; Radio: NSF/NRAO/VLA #nasa #space #nasabeyond #galaxy #chandra #xray #astronomy #science; -
While residents of islands and nations in the Western Pacific looked up in the early morning hours to observe a total eclipse of the Sun, the DSCOVR mission looked down from space and captured the shadow of the Moon marching across Earth’s sunlit face. This animation was assembled from 13 images acquired on March 9, 2016, by NASA’s Earth Polychromatic Imaging Camera (EPIC), a four-megapixel charge-coupled device and Cassegrain telescope on the DSCOVR satellite. Credit: NASA/DSCOVR EPIC Team #eclipse #nasa #space #dscovr #eclipse2016; -
Solar Eclipse Over the South Pacific Ocean: During the afternoon of March 9, 2016, a total solar eclipse was visible in parts of southeast Asia and a partial eclipse was visible in parts of Alaska, Hawaii, Guam, and America Samoa. An eclipse occurs when the moon passes directly between Earth and the sun. When the moon's shadow falls on Earth, observers within that shadow see the moon block a portion of the sun's light. Our Aqua satellite captured this image of the total solar eclipse moving across the south Pacific Ocean at 03:05 UTC on March 9, 2016. Image Credit: NASA Goddard MODIS Rapid Response Team #nasa #nasabeyond #eclipse #solareclipse #eclipse2016 #sun #moon #earth #science; -
Wow, a total solar eclipse! See the moon pass directly in front of the sun. It happened from 8:38 to 8:42 p.m. EST Tuesday. As the moon passed precisely between the sun and Earth - a relatively rare occurrence that happens only about once a year because of the fact that the moon and the sun do not orbit in the exact same plane - it blocked the sun's bright face, revealing the tenuous and comparatively faint solar atmosphere, the corona. The total eclipse was only visible in parts of Southeast Asia. Credit: NASA #nasa #space #earth #moon #sun #astronomy #eclipse #solareclipse #eclipse2016 #science;
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Behold, the mountain Ahuna Mons on dwarf planet Ceres! From afar, Ahuna Mons looked to be pyramid-shaped, but upon closer inspection, it is best described as a dome with smooth, steep walls. This side-perspective view of the mysterious mountain was taken by our Dawn spacecraft's lowest-altitude orbit of Ceres. This mountain is about 3 miles (5 kilometers) high on its steepest side. Its average overall height is 2.5 miles (4 kilometers). Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA #nasa #ceres #nasadawn #astronomy #space #science; -
Showcased at the center of this Hubble Space Telescope image is an emission-line star. Located just under 2,300 light-years from Earth, this star displays prominent emission lines, meaning that the star’s light, dispersed into a spectrum, shows up as a rainbow of colors marked with a characteristic pattern of dark and bright lines. The characteristics of these lines, when compared to the “fingerprints” left by particular atoms and molecules, can be used to reveal the star’s chemical composition. Under 10 million years old and not yet burning hydrogen at its core, unlike the sun, this star is still in its infancy. Further evidence of the star's youth is provided by the presence of reflection nebulae. These hazy clouds, pictured floating above and below, are created when light from a star reflects off a high concentration of nearby dust, such as the dusty material still remaining from the star’s formation. Image credit: ESA/Hubble & NASA, Acknowledgement: Judy Schmidt #nasa #space #esa #hubble #hst #astronomy #science; -
Engineers at NASA's Langley Research Center in Hampton, Virginia, are preparing for a series of water-impact tests to evaluate the Orion spacecraft and crew safety when they return from deep-space missions and touch down on Earth’s surface. Seen here, engineers install a male and female test dummy into a water landing Orion test capsule. Test dummies are used to collect data on the impact astronauts could experience when splashing down in the Pacific Ocean during a NASA space mission. Credits: NASA/David C. Bowman #nasa #space #orion #crashtest #dummy #dummies #crash #test; -
Scientific Balloon Team Hopes to Break Flight Duration Record with New Zealand Launch! After years of tests and development, NASA's Balloon Program team is on the cusp of expanding the envelope in high-altitude, heavy-lift ballooning with its super pressure balloon (SPB) technology. Our scientific balloon experts are in Wanaka, New Zealand, prepping for the fourth flight of an 18.8 million-cubic-foot (532,000 cubic-meter) balloon, with the ambitious goal of achieving an ultra-long-duration flight of up to 100 days at mid-latitudes. Launch of the pumpkin-shaped, football stadium-size balloon is scheduled for some time after April 1, 2016, from Wanaka Airport, pending final checkouts and flight readiness of the balloon and supporting systems. Image Credit: NASA #nasa #science; -
The Crab Pulsar is the end result of a star whose mass collapsed at the end of its life. It weighs as much as our sun, but spins 32 times per second. An instrument on the Hale telescope at the Palomar Observatoryfocused on the pulsar for a 300-second exposure to produce a color image. CHIMERA zoomed in on the pulsar and imaged it very fast, then imaged the rest of the scene slowly to create this image. Credits: NASA/JPL-Caltech #nasa #space #astronomy #nasabeyond #science;
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