#us space programs

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What a time onboard the space station!

Following the safe return to Earth in a Soyuz spacecraft of Expedition 39 crew members shared thoughts about their time on orbit and safe return to Earth during a series of interviews. The trio spent 188 days in space during their mission. Uploads by NASA

Aboard the Earth-orbiting International Space Station, NASA astronauts Rick Mastracchio and Mike Hopkins, both Expedition 38 flight engineers, send down thei… Video Rating: 5 / 5

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Expedition 39 back on solid ground

Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency, NASA Flight Engineer Rick Mastracchio and Russian cosmonaut Mikhail Tyurin are back on solid ground after bidding farewell to the Expedition 40 crew and safely returning to Earth in a Soyuz spacecraft. The trio spent 188 days in space. Uploads by NASA

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NASA Antarctic Ice News

NASA will host a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The briefing participants are: — Eric Rignot, professor of Earth system science at the University of California, Irvine, and glaciologist at NASA’s Jet Propulsion Laboratory in Pasadena, California; — Sridhar Anandakrishnan, professor of geosciences at Pennsylvania State University, University Park; and, — Tom Wagner, cryosphere program scientist with the Earth Science Division of NASA’s Science Mission Directorate in Washington. NASA’s Jet Propulsion Laboratory invites you to watch live and chat about everything from Mars rovers to monitoring asteroids to cool cosmic discoveries. From the lab to the lecture hall, get information directly from scientists and engineers working on NASA’s latest missions. http://www.jpl.nasa.gov Uploads by NASA Jet Propulsion Laboratory

Join my facebook page – Catch the Kev Baker show every weeknight from 11pm-midnight in the UK, 7pm-8pm EST —————. Join my facebook page – Catch the… Video Rating: 5 / 5

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Runaway Glaciers in West Antarctica

Glaciologist Eric Rignot discusses the processes leading to the decline of six rapidly melting glaciers in West Antarctica. A new study by researchers at NASA and the University of California, Irvine, finds the rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea. Full press release at: http://www.jpl.nasa.gov/news/news.php?release=2014-148 Uploads by NASA Jet Propulsion Laboratory

Next meag disaster video will be on thursday. Looking at space and a few earth changing articles this week http://www.angelicscorn.co.uk/Weekly%20Headlines.h… Video Rating: 5 / 5

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Planet Hunting Techniques: Microlensing

Astronomers can discover a planet not by noticing the planet’s gravitational effects on its parent star but rather on a star much farther away. When one celestial object passes in front of another from our point of view, the closer object’s gravity can bend and magnify the light of the more distant object, causing the distant object to appear brighter than normal for a short time. This phenomenon is called gravitational microlensing. For example, if a closer star passes in front of a farther star, the farther star will appear temporarily brighter and then return to its normal brightness after the closer star has passed. But if, by chance, the closer star is accompanied by an unseen planet, the farther star’s brightness will increase a second time as the planet passes in front of it. By watching for a distant star’s brightness to intensify twice, astronomers can find out whether the closer star has a secret traveling companion. Uploads by Hubble Space Telescope

Here is our demonstration of the transit method and the dip in brightness when a planet passes a star. Video Rating: 0 / 5

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Planet Hunting Techniques: Astrometry

The gravity of a planet, however weak it might be, is enough to pull its parent star just a little bit out of place as the planet orbits. While the radial velocity method studies a star’s spectrum to measure the star’s “wobble” toward and away from Earth, there is another trick to measure this tell-tale motion: simply look for the star to move back and forth in the sky. With exceptionally sharp vision, a telescope can actually see a star move relative to other stars. Astrometry is the science of precisely measuring the position of objects in the sky. If astronomers use this method to monitor a star and see that it sways with a periodic rhythm, like slow dancers at a prom, they can tell that an unseen companion — perhaps a planet — is orbiting the star and pulling it to and fro. Uploads by Hubble Space Telescope

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A musical moment on the space station

During a Digital Learning Network event on May 2, International Space Station Commander Koichi Wakata of the Japan Aerospace Exploration Agency shared a musical moment with students in Japan and the Houston, Texas-area. Wakata and the students discussed life and research on the station and played music for each other as the station soared 260 miles over Earth at a speed of 17,500 miles an hour. Uploads by NASA

Hi Guy’s ! And Welcome Back To Another tvcraft Epsiode ! Today I Built The Space Station ! Like & Sub For More … My Channel : https://www.youtube.com/user/…

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NASA's Path to Mars

Get an inside look at NASA’s next steps in deep space exploration — from the space station, to an asteroid and on to the human exploration of Mars. Uploads by NASA