May 01, 2009 | ![]() |
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Some planets may fall into their stars![]() U.S. astronomers say some of the hundreds of planets that once orbited stars outside our solar system may have fallen into their stars and no longer exist. University of Washington astronomer Rory Barnes says recent computer modeling has provided the first evidence gravitational forces might pull a planet into its parent star. "When we look at the observed properties of extrasola ... more Spirit problems still baffle scientists ![]() U.S. space agency scientists say they have not yet solved the mysterious cause of several glitches in the Mars exploration rover Spirit. National Aeronautics and Space Administration engineers remotely drove Spirit Thursday for the first time since April 8 while investigating bouts of amnesia and other unusual behavior exhibited by the rover this month. Spirit has already operate ... more NASA to air astronaut induction ceremony ![]() The U.S. space agency says it will provide live television coverage of the 2009 U.S. Astronaut Hall of Fame induction ceremony. The 3 p.m. EDT Saturday ceremony will take place at the National Aeronautics and Space Administration's Kennedy Space Center Visitor Complex in Florida. Being inducted are former astronauts George Nelson, one of only four space shuttle astronauts to fly untethe ... more NASA to study antifungal drugs in space ![]() The U.S. space agency says it plans to launch a small satellite about the size of a loaf of bread to study how effectively drugs work in space. The National Aeronautics and Space Administration nanosatellite, known as PharmaSat, is a secondary payload aboard a U.S. Air Force four-stage Minotaur 1 rocket planned to be launched May 5. "PharmaSat weighs approximately 10 pounds," NAS ... more Super-Earth And An Ocean World ![]() The discovery of the lightest exoplanet ever found, less than twice the mass of the Earth, has electrified a week-long meeting on astronomy and space science in Europe. The stunning finding was made by a team headed by Michel Mayor of the Geneva Observatory. The icing on the cake is a related discovery that a previously discovered "super-Earth" orbiting the same star appears to reside in the hab ... more |
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![]() ![]() The American Institute of Aeronautics and Astronautics (AIAA) has published a new book, Success Stories in Satellite Systems, which presents first-hand histories, case studies, and lessons learned from many of the pioneers who built the satellite industry. Written to appeal to a broad audience of business leaders, entrepreneurs, and students, the book offers the reader a detailed view of t ... more Ancient Ecosystem Thrives Millions Of Years Below Antarctic Glacier ![]() Scientists have found an ancient ecosystem below an Antarctic glacier and learned that it survived millions of years by transforming sulfur and iron compounds for growth. Described in the latest issue of Science, the ecosystem lives without light or oxygen in a pool of brine trapped below Taylor Glacier and next to frozen Lake Bonney in eastern Antarctica, said John Priscu, co-author of th ... more Ares Super-Chute ![]() NASA and U.S. Air Force test pilots have just dropped a 50,000-pound "dummy" rocket booster on the Arizona desert--and stopped it before it crashed. It's all part of NASA's plan to return to the Moon. "NASA's new Ares moon rocket is going to have a reusable booster stage that we plan to recover after each mission," explains James Burnum of Marshall Space Flight Center. "To 'catch' th ... more SKorea postpones first space rocket launch: official ![]() South Korea's first space rocket launch has been postponed by a month to late July to give engineers more time for tests, the government said Thursday. "The engineeers have expanded the number of items on the launch pad's safety check list to 348 from 99 and called for an extra month," said Lee Sang-Mok, a deputy director of the science and technology ministry. The launch of the Korea Sp ... more |
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![]() ![]() "Our holy grail in exoplanet science is to find an Earth twin," says Sara Seager of MIT. An Earth twin would have three crucial characteristics: it would be a rocky planet the same size as Earth; it would orbit a sun-like star; and it would be located in its star's habitable zone, at the same distance from its star that the Earth is from the sun. Such a planet would be a prime candid ... more Where Is The Coldest Point In The Universe ![]() The entire Universe is saturated with what is known as microwave background radiation, a remnant of the Big Bang. Microwaves are electromagnetic waves - just like visible light. However, microwaves have wavelengths between one metre and one millimetre (= one thousandth of a metre), while the wavelength of light lies between 380 and 780 nanometres (= one thousandth of one millionth of a metre). ... more Stardust Sheds New Light On Origin Of Elements Of Life ![]() Using NASA's Spitzer Telescope, an international research team has found evidence that some stars in the center of the Milky Way galaxy have both carbon and oxygen in the dust that surrounds them, a rare combination in galactic dust. Scientists have long expected to find carbon-rich stars in our galaxy because we know that significant quantities of carbon must be created in many such stars ... more SES To Move ASTRA 2C Satellite To 31.5 Degrees East ![]() SES ASTRA has announced that it will be moving the ASTRA 2C satellite from its current orbital position at 28.2 degrees East to 31.5 degrees East to take over the mission of ASTRA 5A which is no longer in service. ASTRA 2C will be moved to 31.5 degrees East in April 2009 and will remain there for approximately one year. In the meantime, the services transmitted via 28.2 degrees East ... more
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