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Clear Skies Over the United States : On Sept. 17, 2015, astronaut Scott Kelly captured images and video from the International Space Station during an early morning flyover of the United States. Sharing with his social media followers, Kelly wrote, "Clear skies over much of the USA today. #GoodMorning from @ISS! #YearInSpace." Tuesday, Sept. 15 marked the midpoint of the one-year mission to the space station for Kelly and Russian cosmonaut Mikhail Kornienko. The average International Space Station expedition lasts four to six months. Research enabled by the one-year mission will help scientists better understand how the human body reacts and adapts to long-duration spaceflight. This knowledge is critical as NASA looks toward human missions deeper into the solar system, including to and from Mars, which could last 500 days or longer. Image Credit: NASA #nasa #iss #spacestation #space #journeytomars; -
A merger made in the stars! It is known today that merging galaxies play a large role in the evolution of galaxies and the formation of elliptical galaxies in particular. However there are only a few merging systems close enough to be observed in depth. The pair of interacting galaxies seen here is one of these systems. Observations show that both of the galaxies involved were about the same mass and collided about 700 million years ago. You can see clearly in this image the disturbed morphology, tails and loops characteristic of a post-merger. The clash of galaxies caused a rush of star formation and previous Hubble observations showed over 1,000 bright, young star clusters bursting to life at the heart of the galaxy pair. Image credit: ESA/Hubble & NASA, Acknowledgement: Judy Schmidt #nasa #space #hst #hubble #hubble #galaxy #nasabeyond #astronomy #science; -
Pluto’s Majestic Mountains, Frozen Plains and Foggy Hazes: 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 #nasa #apl #space #solarsystem #pluto #plutoflyby #nasabeyond #newhorizons #science; -
The gravitational forces the moon and sun exert are responsible for Earth’s rising and falling tides. Earth’s gravity also exerts forces on the Moon in the form of solid body tides that distort its shape. The Moon is slowly receding away from Earth and forces build as the Moon’s tidal distortion diminishes with distance and its rotation period slows with time. These tidal forces combined with the shrinking of the Moon from cooling of its interior have influenced the pattern of orientations in the network of young fault scarps. A prominent lobate fault scarp in the Vitello Cluster is one of thousands discovered. This topography image shows a degraded crater has been uplift as the fault scarp has formed (blues are lower elevations and reds are higher elevations). Boulders in the crater have aligned in rows that parallel the orientation of the fault scarp. Credits: NASA/LRO/Arizona State University/Smithsonian Institution #nasa #moon #geology #nasabeyond #earth #gravity #sun science; -
Repost from @WhiteHouse: "Good night, Moon. Good night from @ISS!" —Astronaut Scott Kelly on July 2 Thanks for following today's @NASA Instagram takeover featuring photos from the first six months of @StationCDRKelly's #YearInSpace!;
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Repost from @WhiteHouse: Check out the American Flag seen on Flag Day, June 14, from the International Space Station's Cupola, the 360-degree Earth observation point. Research enabled by @StationCDRKelly's #YearInSpace on the @ISS will help scientists better understand how the human body reacts and adapts to long-duration spaceflight. This knowledge is critical as @NASA looks toward human missions deeper into the solar system, including to and from Mars, which could last 500 days or longer. It also carries potential benefits for humans on Earth, from helping patients recover after long periods of bed rest to improving monitoring for people whose bodies are unable to fight infections.; -
Repost from @WhiteHouse: "Another pass through #Aurora. The sun is very active today, apparently." —@StationCDRKelly on August 15 showing a photo of an aurora from the International Space Station The @ISS is a convergence of science, technology and human innovation that enables us to demonstrate new technologies and make research breakthroughs not possible on Earth. It has been continuously occupied since November 2000. Since then, it has been visited by more than 200 people and a variety of international and commercial spacecraft. The space station remains the springboard to @NASA's next giant leap in exploration, including future missions to Mars. #YearInSpace; -
Repost from @WhiteHouse: Here's a photo of @StationCDRKelly aboard the International Space Station that's never been seen before on @Instagram! @NASA hopes that the knowledge gained on Astronaut Scott Kelly's #YearInSpace mission on the @ISS will benefit the Earth and that the data collected will help send humans to new destinations, supporting the next generation of space exploration. That's why to add in another dynamic to the mission: researchers are conducting “twin studies” between Scott and his brother @ShuttleCDRKelly comparing the subtle effects and changes between spaceflight and Earth. Scott and Mark Kelly are twin brothers with almost identical genetics, but they'll be in different environments for one year.; -
Repost from @WhiteHouse: "#GoodMorning to those in the western #USA. Looks like there's a lot going on down there." —@StationCDRKelly on August 10th Today marks the midpoint of Astronaut Scott Kelly's #YearInSpace aboard the International Space Station. Almost everything we know about living in space ends at six months, so as he heads into the second half of his mission, he's pushing the edge of our scientific understanding. Follow along today as @NASA takes over our account with photos from the first half of Scott's #YearInSpace on the @ISS.; -
Artist concept of an auroral display on a brown dwarf: Mysterious objects called brown dwarfs are sometimes called "failed stars." They are too small to fuse hydrogen in their cores, the way most stars do, but also too large to be classified as planets. But a new study in the journal Nature suggests they succeed in creating powerful auroral displays, similar to the kind seen around the magnetic poles on Earth. If you could see an aurora on a brown dwarf, it would be a million times brighter than an aurora on Earth. Credits: Chuck Carter and Gregg Hallinan/Caltech (Artist Concept) #nasa #star #aurora #nasabeyond #science @nasajpl;
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Rocks Here Sequester Some of Mars' Early Atmosphere This view combines information from two instruments on NASA's Mars Reconnaissance Orbiter to map color-coded composition over the shape of the ground in a small portion of the Nili Fossae plains region of Mars' northern hemisphere. This site is part of the largest known carbonate-rich deposit on Mars. In the color coding used for this map, green indicates a carbonate-rich composition, brown indicates olivine-rich sands, and purple indicates basaltic composition. Carbon dioxide from the atmosphere on early Mars reacted with surface rocks to form carbonate, thinning the atmosphere by sequestering the carbon in the rocks. Image credit: NASA/JPL-Caltech/JHUAPL/Univ. of Arizona #mars #surface #planets #solarsystem #nasa #space #mro #redplanet #nofilter; -
The arrangement of the spiral arms in the galaxy Messier 63, seen here in an image from the Hubble Space Telescope, recall the pattern at the center of a sunflower. So the nickname for this cosmic object — the Sunflower Galaxy — is no coincidence. Galactic arms, sunflowers and whirlpools are only a few examples of nature’s apparent preference for spirals. For galaxies like Messier 63 the winding arms shine bright because of the presence of recently formed, blue–white giant stars and clusters, readily seen in this Hubble image. Credit: ESA/Hubble & NASA #nasa #hubble #space #sunflower #galaxy; -
A small, but complex mass of solar material gyrated and spun about over the course of 40 hours above the surface of the sun on Sept. 1-3, 2015. It was stretched and pulled back and forth by powerful magnetic forces in this sequence captured by our Solar Dynamics Observatory, or SDO. The temperature of the ionized iron particles observed in this extreme ultraviolet wavelength of light was about 5 million degrees Fahrenheit. SDO captures imagery in many wavelengths, each of which represents different temperatures of material, and each of which highlights different events on the sun. Each wavelength is typically colorized in a pre-assigned color. Wavelengths of 335 Angstroms, such as are represented in this picture, are colorized in blue. Credit: NASA/SDO #nasa #sun #sdo #solarsystem #nasabeyond #space #science; -
New close-up images of Pluto reveal a bewildering variety of surface features that have scientists reeling because of their range and complexity. This synthetic perspective view of Pluto, based on the latest high-resolution images to be downlinked from our New Horizons spacecraft, shows what you would see if you were approximately 1,100 miles (1,800 kilometers) above Pluto's equatorial area, looking northeast over the dark, cratered, informally named Cthulhu Regio toward the bright, smooth, expanse of icy plains informally called Sputnik Planum. The entire expanse of terrain seen in this image is 1,100 miles (1,800 kilometers) across. The images were taken as New Horizons flew past Pluto on July 14, 2015, from a distance of 50,000 miles (80,000 kilometers). Credits: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute #nasa #pluto #plutoflyby #newhorizons#solarsystem #nasabeyond #science; -
Mysterious bright spots are seen here in greater detail. This image, made using images taken by our Dawn spacecraft, shows Occator crater on dwarf planet Ceres, home to a collection of intriguing bright spots. The bright spots are much brighter than the rest of Ceres' surface, and tend to appear overexposed in most images. This view is a composite of two images of Occator: one using a short exposure that captures the detail in the bright spots, and one where the background surface is captured at normal exposure. Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA #nasa #ceres #planets #nasadawn #dawn #solarsystem #space #nasabeyond #science;
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