Tag Archives: nevada

Klima­­­­­wandel: US-Wüsten­­­­­gebiete werden künftig noch tro­­­­­ckener

350.000 Jahre Klimageschichte archiviert in der Devils-Hole-Höhle, Nevada: Geologen der Universität Innsbruck untersuchen Niederschlagsmuster weit in die Vergangenheit zurück, um besser verstehen zu können, wie die Wüsten im Südwesten der USA künftig vom Klimawandel beeinflusst werden. (more…)

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Klimaschatz aus Nevada

Die Felskluft Devils Hole in den USA ist weltweit einzigartig. Sie beherbergt ein Unterwasserreservoir, in dem seit hunderttausenden von Jahren konstante Bedingungen herrschen. In einem Projekt des Wissenschaftsfonds FWF untersuchen Forscherinnen und Forscher um Christoph Spötl dieses wertvolle Klimaarchiv und sind dabei einem Rätsel auf der Spur. (more…)

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There is still quite a bit of interest in cloud services, and still no small demand for them. Due to this, there’s been a rush by all manner of service providers, both old and new, to provide cloud offerings to hungry customers. Indeed, of the roughly 20,000 North American service providers, just about 20 percent of these offer cloud services at this time, and this number is expected to grow sharply over the next few years. Yet at the same time, there will be a lot of attrition among these providers, if only because many of these organizations are only regional in nature, and offer only a small array of products — most of them just one or two.

At least that’s what Ashar Baig, a research director at Gigaom predicts. He provided his view on the near future and the recent past of cloud services at the recent ITEXPO in Las Vegas, Nevada. (more…)

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A Roly-Poly Pika Gathers Much Moss

High-Fiber Salad Bar May Help Lagomorphs Survive Climate Change

In some mountain ranges, Earth’s warming climate is driving rabbit relatives known as pikas to higher elevations or wiping them out. But University of Utah biologists discovered that roly-poly pikas living in rockslides near sea level in Oregon can survive hot weather by eating more moss than any other mammal.

“Our work shows pikas can eat unusual foods like moss to persist in strange environments,” says biology professor Denise Dearing, senior author of the new study, published online on Dec. 18, 2013 in the February 2014 issue of Journal of Mammalogy. “It suggests that they may be more resistant to climate change than we thought.” (more…)

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Seeing Stars, Finding Nukes: Radio Telescopes Can Spot Clandestine Nuclear Tests

SAN FRANCISCO — In the search for rogue nukes, researchers have discovered an unlikely tool: astronomical radio telescopes.

Ohio State University researchers previously demonstrated another unlikely tool, when they showed that South Korean GPS stations detected telltale atmospheric disturbances from North Korea’s 2009 nuclear test.

Both techniques were born out of the discovery that underground nuclear explosions leave their mark—on the outer reaches of Earth’s atmosphere. (more…)

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Armchair Astronomers Find Planet in Four-Star System

A joint effort of citizen scientists and professional astronomers has led to the first reported case of a planet orbiting twin suns that in turn is orbited by a second distant pair of stars.

Aided by volunteers using the Planethunters.org website, a Yale-led international team of astronomers identified and confirmed discovery of the phenomenon, called a circumbinary planet in a four-star system.

Only six planets are known to orbit two stars, according to researchers, and none of these are orbited by distant stellar companions. (more…)

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How to Hunt a Space Rock

Peter Willis and his team of researchers at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., had a problem. Actually, more like they had a solution that needed a problem. Confused? Let’s let Peter give it a shot…

“My team and I came up with a new lab on a chip,” said Willis, a scientist at JPL’s Microdevices Lab. “It essentially miniaturizes an automated sample processing and analysis instrument that could be put aboard future spacecraft and sent to distant planets, moons and asteroids. One challenge we have is finding new and interesting samples to try our chip on.” (more…)

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Largest Meteorite Hunt in History Yields Treasure for UA

Thanks to the generosity of three professional meteorite hunters, the UA Lunar and Planetary Laboratory will own three samples of a rare kind of meteorite leftover from the earliest beginnings of the solar system.

To the untrained eye, the black, smooth-edged lump that is sitting under a glass cover looks similar to a piece of charcoal. But to scientists Dante Lauretta and Ed Beshore from the University of Arizona Lunar and Planetary Laboratory, it is one of the most intriguing stones they have ever seen.

“This meteorite is the oldest rock you’ll ever find on Earth. In fact, it formed 50 to 60 million years before the Earth even existed,” said Lauretta, who is a professor of planetary science and principal investigator of NASA’s OSIRIS-REx mission, which will send a spacecraft to return a sample from an asteroid in 2023. (more…)

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