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@nasa : With the #ISS15 anniversary today, let’s not forget what the space station (#ISS) is truly about: humans living off the planet. In this image, NASA astronaut Tracy Caldwell Dyson, Expedition 24 flight engineer, looks through a window in the Cupola of the International Space Station. A blue and white part of Earth and the blackness of space are visible through the windows. The image, taken on Sept. 11, 2010, was a self-portrait using natural light. The station is the centerpiece of our human spaceflight activities in low-Earth orbit. It is fully staffed with a crew of six, and American astronauts will continue to live and work there in space 24 hours a day, 365 days a year. It is a test bed for exploration technologies such as autonomous refueling of spacecraft, advanced life support systems and human/robotic interfaces. The station is the engineering test bed that enables us to prove the systems we need and deal with the crew health issues that must be solved for us to actually go beyond Earth for extended periods of time, when we eventually go to Mars and beyond. CREDIT: NASA #nasa #space #spacestation #earth #humanoutpost #iss15 #birthday #astronauts #zarya #roscosmos #international #unity #rsa
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Celebrating #ISS15: Astronaut James H. Newman waves during a spacewalk preparing for release of the first combined #ISS elements. The Russian-built Zarya module, with its solar array panel visible here, was launched into orbit fifteen years ago on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, NASA's space shuttle Endeavour launched Unity, the first U.S. piece of the complex. During three spacewalks on the STS-88 mission, the two space modules built on opposite sides of the planet were joined together in space, making the space station truly international. Since that first meeting of Zarya and Unity, the space station grew piece by piece with additions from each of the international partners built across three continents and leading to the largest and most complex spacecraft ever constructed. The space station, now four times larger than Mir and five times larger than Skylab, represents a collaboration between NASA, Roscosmos, the European Space Agency, the Japanese Aerospace Exploration Agency and the Canadian Space Agency, representing 15 countries in all. CREDIT: NASA #nasa #space #iss #iss15 #spacestation #birthday #astronauts #zarya #roscosmos #international #unity #rsa;
Celebrating 15 Years (#ISS15) Since the Sunrise: Two weeks after the Zarya was launched into orbit on Nov. 20, 1998, Endeavour launched Unity, the first U.S. piece of the complex, during the STS-88 mission. In this image, blanketing clouds form the backdrop for this 70mm scene of the connected Zarya and Unity modules after having been released from NASA’s space shuttle Endeavour's cargo bay a bit earlier. The two space modules built on opposite sides of the planet were joined together in space, making the space station truly international. The Russian Space Agency, now known as Roscosmos, launched a Proton rocket that lifted the pressurized module called Zarya, or “sunrise,” into orbit. This launch would truly be the dawn of the largest international cooperation effort in space to ever come to light. Zarya was the first piece of the International Space Station. Also known as the Functional Cargo Block (FGB), it would provide a nucleus of orientation control, communications and electrical power while the station waited for its other elements, including the Zvezda service module and Unity. CREDIT: NASA #nasa #space #iss #iss15 #spacestation #birthday #astronauts #zarya #roscosmos #international #unity #rsa;
Drifting away: three nanosatellites, known as Cubesats, were deployed from the space station’s airlock in the Kibo module Tuesday at 7:10 a.m. EST; a fourth will be released Wednesday at 2:50 a.m. The Japanese robotic arm grappled and unberthed a deployer mechanism containing all four satellites from Kibo’s airlock. Flight Engineer Koichi Wakata monitored the satellite deployment while operating the Japanese robotic arm from inside Kibo. The Cubesats were delivered to the space station Aug. 9, 2013, aboard Japan’s fourth H-II Transfer Vehicle, Kounotori-4. This image was taken by space station astronaut Rick Mastracchio. CREDIT: NASA #station #iss #spacestation #astronauts #space #nasa,#earth #satellites #cubesats #nanosatellites;
Comet ISON is seen 9 days from the sun: Comet ISON shows off its tail in this three-minute exposure taken on Nov. 19, 2013 at 6:10 a.m. EST, using a 14-inch telescope located at NASA's Marshall Space Flight Center. The comet is just nine days away from its close encounter with the sun; hopefully it will survive to put on a nice show during the first week of December. The star images are trailed because the telescope is tracking on the comet, which is now exhibiting obvious motion with respect to the background stars over a period of minutes. At the time of this image, Comet ISON was some 44 million miles from the sun -- and 80 million miles from Earth -- moving at a speed of 136,700 miles per hour. Image credit: NASA/MSFC/Aaron Kingery #nasa #space #ison #cometison #comet #stars #astronomy #universe #solarsystem;
First IceBridge Antarctic science flight from McMurdo Station completed! We were treated to spectacular views while successfully collecting data over the Transantarctic mountains. IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for early 2016. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations. IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year. IceBridge flights are conducted in March-May over Greenland and in October-November over Antarctica. Other smaller airborne surveys around the world are also part of the IceBridge campaign. Credit: NASA / Michael Studinger #nasa #earth #science #ice #icebridge #icesat #snow #arctic #polar #antarctic #polarice;

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