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NASA’s Saucer-Shaped Craft Preps for Flight Test

By Guest PostMay 23, 2014Scienceamanda agan, bakterielle giftstoffe, ban the box, carsten schwan, cdt toxin, christoph wissing, durchfallerreger, goyet in belgien, klaus aktories, low density, mars, NASA, oberflaeche von darmzellen, project, sonja starr, statistical discrimination, zellform

NASA’s Low-Density Supersonic Decelerator (LDSD) project, a rocket-powered, saucer-shaped test vehicle, has completed final assembly at the U.S. Navy’s Pacific Missile Range Facility in Kauai, Hawaii.

This experimental flight test is designed to investigate breakthrough technologies that will benefit future Mars missions, including those involving human exploration. Three weeks of testing, simulations and rehearsals are planned before the first launch opportunity on the morning of June 3. LDSD was built at NASA’s Jet Propulsion Laboratory, Pasadena, California, and shipped to Kauai for final assembly and preparations. (more…)

NASA Mars Rover Curiosity Wrapping Up Waypoint Work

By Guest PostMay 21, 2014Scienceadnan darwiche, dan koehl, elch test, gale crater, mars rover curiosity, micro volunteering, microbial life, NASA, wildtiermanagement

Portions of powdered rock collected by drilling into a sandstone target last week have been delivered to laboratory instruments inside NASA’s Curiosity Mars rover, and the rover will soon drive on toward its long-term destination on a mountain slope.

Other instruments on the rover have inspected the rock’s interior exposed in the hole and in drill cuttings heaped around the hole. The target rock, “Windjana,” is a sandstone slab within a science waypoint area called “The Kimberley.” (more…)

West Antarctic Glacier Loss Appears Unstoppable

By Guest PostMay 18, 2014Environmentbedrock, celine le bohec, eric rignot, european, fabien petit, glacier loss, greenland ice sheet, ice sheet, irvine, kolonie, mertz gletscher, NASA, operation icebridge, robin cristofari, thwaites glacier, umweltveraenderung, university of california, upstream, west antarctic

A new study by researchers at NASA and the University of California, Irvine, finds a 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.

The study presents multiple lines of evidence, incorporating 40 years of observations that indicate the glaciers in the Amundsen Sea sector of West Antarctica “have passed the point of no return,” according to glaciologist and lead author Eric Rignot, of UC Irvine and NASA’s Jet Propulsion Laboratory in Pasadena, California. The new study has been accepted for publication in the journal Geophysical Research Letters. (more…)

Ganymede May Harbor ‘Club Sandwich’ of Oceans and Ice

By Guest PostMay 6, 2014Scienceauf hoher frequenz, christophe sotin, galileo mission, ganymede, ice, icy moon, jupiter, laubfrosch, martin jansen, mercury, model, NASA, oceans, partnersuche, quaken, sea floor, solar system, values

The largest moon in our solar system, a companion to Jupiter named Ganymede, might have ice and oceans stacked up in several layers like a club sandwich, according to new NASA-funded research that models the moon’s makeup.

Previously, the moon was thought to harbor a thick ocean sandwiched between just two layers of ice, one on top and one on bottom. (more…)

NASA Finds Drought May Take Toll on Congo Rainforest

By Guest PostApril 23, 2014EnvironmentAmazon rainforest, ammirati, atlantic ocean, biodiversity, carbon storage, climate experiment, daniel huber, drought, gravity recovery, hypercam, hyperspectral camera, ibm ix, jaxa, klima mooc, modis, NASA, neel joshi, paul papas, sassan saatchi, terra satellite, united states, university at albany

A new analysis of NASA satellite data shows Africa’s Congo rainforest, the second-largest tropical rainforest in the world, has undergone a large-scale decline in greenness over the past decade.

The study, led by Liming Zhou of University at Albany, State University of New York, shows between 2000 and 2012, the decline affected an increasing amount of forest area and intensified. The research, published Wednesday in Nature, is one of the most comprehensive observational studies to explore the effects of long-term drought on the Congo rainforest using several independent satellite sensors. (more…)

Ancient volcanic explosions shed light on Mercury’s origins

By Guest PostApril 22, 2014Sciencebrown university, creativity in music, data, david william hearn, garrett weyenberg, mercury, messenger spacecraft, mount st helens, NASA, origin, rheinzufluss, sayo art, staffpad, tropische parasiten

Mercury was long thought to be lacking volatile compounds that cause explosive volcanism. That view started to change when the MESSENGER spacecraft returned pictures of pyroclastic deposits — the telltale signature of volcanic explosions. Now more detailed data from MESSENGER shows that volcanoes exploded on Mercury for a substantial portion of the planet’s history. The findings suggest Mercury not only had volatiles but held on to them for longer than scientists had expected.

PROVIDENCE, R.I. [Brown University] — The surface of Mercury crackled with volcanic explosions for extended periods of the planet’s history, according to a new analysis led by researchers at Brown University. The findings are surprising considering Mercury wasn’t supposed to have explosive volcanism in the first place, and they could have implications for understanding how Mercury formed. (more…)

Warum schwächelt das Immunsystem der Astronauten?

By Guest PostApril 19, 2014Scienceadriana mancuso, chanares formation, cost benefit modell, cytokine, dinosaur relatives, early dinosauromorphs, esa astronaut, farid chemale, first dinosaurs, gruenalge, iss, juan martin leardi, klaus herburger, klebsormidium crenulatum, martina pichrtova, NASA, otmar weiss, randall irmis, usa, usi wien, volcanic ash layer

DLR schickt zwei biologische Experimente der Universität Magdeburg zur ISS – Ebenfalls an Bord: NASA-Kameras für DLR-Schüler-Experiment “Columbus Eye”

Im All ist alles anders: Jede noch so kleine Zelle unseres Körpers merkt, dass die Schwerkraft fehlt, unsere Körperfunktionen sind verändert. So schwächt ein Aufenthalt im All auch das Immunsystem der Astronauten. Warum das so ist, wollen Forscher der Universität Magdeburg in zwei vom Raumfahrtmanagement des DLR organisierten Experimenten auf der Internationalen Raumstation ISS herausfinden. An Bord eines Dragon-Raumschiffs der US-amerikanischen Firma SpaceX sind am 18. April 2014 um 21.25 Uhr MESZ (15.25 Uhr Ortszeit) zwei Zellkulturen vom Weltraumbahnhof in Cape Canaveral (Florida) zur ISS gestartet. (more…)

NASA’s Kepler Telescope Discovers First Earth-Size Planet in ‘Habitable Zone’

By Guest PostApril 17, 2014Sciencebernd becker, capitalist family values, constellation cygnus, debat o meter, earth size planet, echtzeit, first, habitable zone, johnathan davis, kepler telescope, michael cohea, milky way galaxy, NASA, paul hertz, thomas barclay, uwe wagschal

Using NASA’s Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting a star in the “habitable zone” — the range of distance from a star where liquid water might pool on the surface of an orbiting planet. The discovery of Kepler-186f confirms that planets the size of Earth exist in the habitable zone of stars other than our sun.

While planets have previously been found in the habitable zone, they are all at least 40 percent larger in size than Earth, and understanding their makeup is challenging. Kepler-186f is more reminiscent of Earth. (more…)

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