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@nasa : NASA Sees 'Watershed' Cosmic Blast in Unique Detail: This artist rendering is of a blast of light from a dying star in a distant galaxy that on April 27 became the focus of astronomers around the world. The explosion, known as a gamma-ray burst and designated GRB 130427A, tops the charts as one of the brightest ever seen. A trio of NASA satellites - Fermi Gamma-ray Space Telescope, the Nuclear Spectroscopic Telescope Array (NuSTAR) & the Swift Gamma-ray Burst Mission - working in concert with ground-based robotic telescopes, captured never-before-seen details that challenge current theoretical understandings of how gamma-ray bursts work. Gamma-ray bursts are the most luminous explosions in the cosmos. Astronomers think most occur when the core of a massive star runs out of nuclear fuel, collapses under its own weight, and forms a black hole. The black hole then drives jets of particles that drill all the way through the collapsing star at nearly the speed of light. Credit: NASA's Goddard Space Flight Center #nasa #space #astromony #gammaray #cosmic #discovery # astronomers #swift #fermi #nestar #radiation #telescope
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A Portrait of Global Winds: High-resolution global atmospheric modeling provides a unique tool to study the role of weather within Earth’s climate system. NASA’s Goddard Earth Observing System Model (GEOS-5) is capable of simulating worldwide weather at resolutions as fine as 3.5 kilometers. This visualization shows global winds from a GEOS-5 simulation using 10-kilometer resolution. Surface winds (0 to 40 meters/second) are shown in white and trace features including Atlantic and Pacific cyclones. Upper-level winds (250 hectopascals) are colored by speed (0 to 175 meters/second), with red indicating faster. The complete 2-year “Nature Run” simulation—a computer model representation of Earth's atmosphere from basic inputs including observed sea-surface temperatures and surface emissions from biomass burning, volcanoes and anthropogenic sources—produces its own unique weather patterns including precipitation, aerosols and hurricanes. A follow-on Nature Run is simulating Earth’s atmosphere at 7 kilometers for 2 years and 3.5 kilometers for 3 months. Image Credit: William Putman/NASA Goddard Space Flight Center #nasa #earth #atmosphere #winds #climate #geo5 #volcanoes;
As the #ISS reaches it's 15th anniversary (#ISS15), let's pause to reflect on the amazing accomplishments of living and working in space these last 15 years. Zarya, the first space station module, was launched aboard a Russian Proton rocket and placed into orbit on Nov. 20, 1998. Two years later the first crew would occupy the station which consisted of just three modules including Russia’s Zvezda service module and the United States’ Unity node. When Expedition 1 returned to Earth four months later the station had expanded to a fourth module, the U.S. Destiny laboratory, and its first solar array, the P6 truss structure, attached to Unity. Fast forward to today and you have the 38th crew to live and work continuously aboard the orbital laboratory. They are moving ahead with science to benefit life on Earth and in space. The six-member crew is also ensuring the station is operating in optimal shape and exercising to stay healthy during its long-term stay in space. The space station continues to provide a microgravity environment for researchers to conduct experiments in biology and biotechnology, human research, Earth and space science, physical science, and technology demonstrations, among a multitude of others, in what was only an engineering schematic just 15 years ago. In that time, space station educational activities on orbit have reached more than 42 million students across the globe. Further, the space station serves as a stepping-stone to deeper space exploration, demonstrating the essentials of long-term living in space. Thank you for celebrating 15 years of the International Space Station with us today. Image credit: NASA #nasa #space #spacestation #earth #humanoutpost #iss15 #birthday #astronauts #zarya #international #unity;
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;
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;

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