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| May 13, 2008 |  |
a timely reality check |
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Solar Variability And Climate Change Pasadena CA (JPL) May 08, 2008 
The sun has powered almost everything on Earth since life began, including its climate. The sun also delivers an annual and seasonal impact, changing the character of each hemisphere as Earth's orientation shifts through the year. Since the Industrial Revolution, however, new forces have begun to exert significant influence on Earth's climate. "For the last 20 to 30 years, we believe greenhouse ... read more |
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Planets By The Dozen
Huntsville AL (SPX) May 12, 2008You know the planets of our solar system, each a unique world with its own distinctive appearance, size, and chemistry. Mars, with its bitter-cold, rusty red sands; Venus, a fiery world shrouded in thick clouds of sulfuric acid; sideways Uranus and its strange vertical rings. The variety is breathtaking. Now imagine the variety that must exist in hundreds of solar systems. There may be ... more The Antennae Galaxies Found To Be Closer To Us 
Paris, France (ESA) May 12, 2008New research on the Antennae Galaxies using the Advanced Camera for Surveys onboard the NASA/ESA Hubble Space Telescope shows that this proto-typical pair of interacting galaxies is in fact much closer to us than previously thought - at 45 million light-years instead of 65 million light-years. The Antennae Galaxies are among the closest known merging galaxies. The merging pair of galaxies ... more New NASA Tool Allows Amateurs To Explore The Ionosphere From The Inside 
Boulder CO (SPX) May 09, 2008Last week at the Space Weather Workshop in Boulder, Colorado, NASA released a 4D live model of the Earth's ionosphere. Without leaving home, anyone can fly through the layer of ionized gas that encircles Earth at the edge of space itself. All that is required is an Internet connection and a free copy of Google Earth. NASA calls the ionosphere the "last wisp of Earth's atmosphere that astronauts ... more Record-Setting Laser May Aid Searches For Earthlike Planets 
Konstanz, Germany (SPX) May 09, 2008Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology have demonstrated an ultrafast laser that offers a record combination of high speed, short pulses and high average power. The same NIST group also has shown that this type of laser, when used as a frequency comb-an ultraprecise technique for measuring different colors of light- ... more Telescopes search for signals from space 
Mountain View, Calif. (UPI) May 7, 2008 U.S. scientists, searching for signs of life from faraway planets, are building hundreds of radio telescopes in Northern California, their leader says. Jill Tarter, director of the Center for SETI Research at the SETI Institute, said 42 of the planned 350 telescopes have been built in a mostly uninhabited area about 300 miles northeast of San Jose, Calif., the San Jose Mercury News repo ... more |
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Pasadena CA (JPL) May 08, 2008Two decades of scrutinizing Saturn are finally paying off, as scientists have discovered a wave pattern, or oscillation, in Saturn's atmosphere only visible from Earth every 15 years. The discovery of the wave pattern is the result of a 22-year campaign observing Saturn from Earth (the longest study of temperature outside Earth ever recorded), and the Cassini spacecraft's observations of ... more XMM-Newton Discovers Part Of Missing Matter In The Universe 
Paris, France (SPX) May 07, 2008ESA's orbiting X-ray observatory XMM-Newton has been used by a team of international astronomers to uncover part of the missing matter in the universe. 10 years ago, scientists predicted that about half of the missing 'ordinary' or normal matter made of atoms exists in the form of low-density gas, filling vast spaces between galaxies. All the matter in the universe is distributed in a ... more APL's STEREO Mission Stars In Smithsonian IMAX Film 
Baltimore MD (SPX) May 07, 2008STEREO spacecraft animations created by Steve Gribben of the Technical Communications Group at APL sizzle on the big screen in 3D Sun, a digital IMAX film that opened in March at the Smithsonian Air and Space Museum in Washington, D.C. The 20-minute movie features the STEREO - for Solar TErrestrial RElations Observatory - mission to help audiences understand the impact the sun has on Earth. ... more A Super Solar Flare 
Washington DC (SPX) May 07, 2008At 11:18 AM on the cloudless morning of Thursday, September 1, 1859, 33-year-old Richard Carrington-widely acknowledged to be one of England's foremost solar astronomers-was in his well-appointed private observatory. Just as usual on every sunny day, his telescope was projecting an 11-inch-wide image of the sun on a screen, and Carrington skillfully drew the sunspots he saw. ... more |
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Chicago IL (SPX) May 05, 2008Robert Fisher and Cal Jordan are among a team of scientists who will expend 22 million computational hours during the next year on one of the world's most powerful supercomputers, simulating an event that takes less than five seconds. Fisher and Jordan require such resources in their field of extreme science. Their work at the University Of Chicago's center for astrophysical thermonuclear ... more Titan's Smoggy Sand Grains 
Pasadena CA (SPX) May 05, 2008Titan and Earth have much in common, but not when it comes to sand. On Earth, sand grains form by breaking things down, but on Titan, the opposite may be true - with much of the sand a product of building things up. That's one theory Cassini scientists are considering after studying Titan's massive sand dunes with the visible and infrared mapping spectrometer on the Cassini Saturn orbiter. ... more The eta Aquarid Meteor Shower 
Washington DC (SPX) May 05, 2008The eta Aquarid meteor shower peaks this year on Tuesday, May 6th. The best time to look, no matter where you live, is during the hours immediately before sunrise. If you can, get away from city lights; you will see more meteors from the dark countryside. 2008 should be a good year for the eta Aquarid meteors. The Moon is new, which means no lunar glare, and Earth is expected to pass ... more Temporary cooling trend may offset warming 
New York (UPI) May 2, 2008 German scientists said temporary climate variations may temporarily offset the long-term global warming trend. Researchers from the Leibniz Institute of Marine Sciences and the Max Planck Institute for Meteorology said computer simulations and measurements of ocean temperatures suggest that global warming will weaken slightly during the the next decade. The findings are published ... more
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