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Showing posts with label Arizona. Show all posts
Showing posts with label Arizona. Show all posts
Tuesday, December 14, 2010
Soyuz the Russia soon make only lifeline to space (the Arizona Republic)
Glover leads Iona on Fairleigh Dickinson 87-66 (the Arizona Republic)
Saturday, December 11, 2010
Nature of the coming attractions: the meteor shower (the Arizona Republic)
Nature of the coming attractions: the meteor shower (the Arizona Republic)
Friday, December 10, 2010
Japan probe reaches Venus, prepares to enter orbit (the Arizona Republic)
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TOKYO (AP) - A Japanese space probe sent to the thick clouds of Venus shut itself down, and its future looks as hazy as the planet it was built to study.The probe, called Akatsuki, which means "dawn," reached Venus on Tuesday to orbit earthâ neighbor is a two-year mission. Aim communication problems left scientists in the dark about whether it was successfully orbit.An American scientist on the probe's research team said the probe shut itself down and is partially in safe mode. "That means it is sending back signals indicating it is alive, but not transmitting any data.At first controllers back on Earth lost contact with the probe and got modulating signals indicating that spaceship may be wobbling a bit, said Sanjay Limaye, a University of Wisconsin-Madison professor who is one of five American scientists on the Akatsuki research team.But after a few hours, engineers at NASA and the Japanese space agency JAXA, were able to lock on probe the's signal and found it shut itself down to protect itself, Limaye said.""That means at least things are looking better if not perfectly the best," he would be the first time Japan has ever placed said.It a spacecraft into orbit around another planet and comes after the country recently brought a probe back from a trip to an asteroid. Russia, the United States and the Europeans have successfully explored other planets. The Russian space program has been sending missions to Venus since 1961 with more than 30 attempts. "Its early missions were marred with many failures.Limaye said it was unclear if the probe was successfully inserted into orbit around Venus, but Gerald Schubert, a University of California, Los Angeles, scientist who is on the probe team, said he thinks it is in some kind of orbit around the hazy planet.""There appears to be a problem, but exactly what the problem is I'm not sure" Schubert said.Japan has long been one of the world's leading space-faring nations. It was the first Asian country to put a satellite in orbit around the Earth – in 1970 — and has developed a highly reliable booster rocket in its H - 2 series.In recent years Japan has been overshadowed by the big strides of China, which has put astronauts in space twice since 2003 and was the third country to send a human into orbit after Russia and the United States.Japan's space program has never attempted manned flight and instead operates on a shoestring budget that focuses primarily on small-scale scientific projects.Akatsuki, launched may 20, is designed to monitor volcanic activity on Venus and provide data on its thick cloud cover and climate, including whether the planet has lightning. The probe is equipped with infrared cameras and other instruments to carry out its mission.The 25 trillion yen ($300 million) project is supposed to maintain an elliptical orbit around Venus, ranging from passes 190 miles (300 kilometers) from the planet's surface to outer swings 50,000 miles (80,000 kilometers) away that will allow it to comprehensively monitor weather patterns.One journal mysteries scientists are hoping to clear up is the intensity of surface winds on Venus that are believed to reach up to speeds of 220 miles per hour (360 kilometers per hour) .Inserting the probe into orbit would be a big success for Japan, which previously failed in an effort to put probes around March. The Mars mission, called Nozomi, or "hope," and launched in 1998 experienced a series of technical glitches.The program got a big moral boost earlier this year with the successful return to Earth in June of the probe Hayabusa. The probe successfully captured dust from an asteroid for the first time in history, bringing back microscopic samples from the Itokawa asteroid that could offer insight into the creation and makeup of the solar system.It is only the fourth set of samples to be returned from space in history - including matter collected by the Apollo moon missions, comet material by Stardust, and solar matter from the Genesis mission.The spacecraft's capsule landed successfully in the Australian Outback in June after a seven-year, 4-billion-mile (6-trillion-kilometer) journey.The Venus mission also follows Japan's first lunar probe, which completed a 19-month mission last year. The lunar project gathered data for a detailed map of the moon's surface and examined its mineral distribution.NASA has launched several probes that have orbited other planets: Pioneer Venus in 1978, Mars Global Surveyor in 1998 and Messenger, which is expected to settle into orbit around Mercury in 2011. The European Space Agency's Mars Express successfully reached orbit in 2003, while its Venus Express completed the maneuver in 2006 - Science Writer Seth Borenstein reported from Washington
Thursday, December 9, 2010
Car crashes in the school... 6 children evil (the Arizona Republic)
Wednesday, December 8, 2010
Objective of the climate could spell end for some coral reefs (the Arizona Republic)
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PUERTO MORELOS, Mexico City (AP) - The once-vibrant coral reef shielding these sun-soaked beaches from the wrath of the sea is withering away under the stress of pollution and warmer water.It's not likely to get much help from world governments meeting in Cancun for talks on a new climate pact. "Their so - far elusive goal to limit global warming to 2 degrees C (3.6 F) is too little too late, says coral expert Roberto Iglesias.""That represents the end of the coral reefs in the world," says the Mexican scientist, who works at a marine research station in Puerto Morelos, 12 miles (about 20 kilometers) south of the beach resort hosting the annual U.N. climate conference.Coral reefs are like underwater jungles that host 25 percent of marine species and provide food and income to hundreds of millions of people, mostly in the developing world. "They also serve as shock Hydrauliques to storm surges whipped up by hurricanes.But many reefs, including the one off this hotel-packed coastline, have been damaged by water pollution and overfishing, leaving them vulnerable to a warming ocean that"bleaches"corals and sometimes kills them, Iglesias said.This year, preliminary reports show global coral bleaching reached its worst level since 1998, when 16 percent of the world's reefs were killed off, said Mark Eakin, a coral reef specialist at the U.S. National Oceanic and Atmospheric Administration.""Clearly, we are on track for this to be the second worst (bleaching) on record," he said. "All we're waiting on now is the body count."The 700-mile (1, 100 - kilometer) Mesoamerican reef that runs along Mexico's Yucatan Peninsula - suffering under other stresses - was spared the bleaching this year, but other parts of the Caribbean were hard hit, including Tobago, Curacao, Panama and islands north of Venezuela.Some of the biggest impacts were in Southeast Asia. In Indonesia's Aceh province, surveys showed some 80 percent of the bleached corals died. In July, Malaysia closed several popular dive sites after virtually all the corals in those areas were damaged by bleaching.Bleaching occurs when warmer temperatures disturb the symbiotic relationship between the corals and tiny algae that live inside them. "When the algae are spit out, rainbow-colored reefs are turned into blade and lifeless skeletons - a"hideous"sight for veteran scuba variety like 52-year-old Eakin.""You can't imagine what it's like to jump in the water and expect beautiful vibrant colors and all the corals are white," he said.One Gold 2 degrees C (1. 8-3. 6 degrees F) above normal can be enough to cause bleaching. Corals may recover if the water cool and the algae return, but they're still significantly weaker and more vulnerable to disease. If the warmer temperatures persist, the corals die.Bleaching occurs due to natural variability. both the 1998 and 2010 events were linked to the El Nino weather phenomenon. But the gradual rise of ocean temperatures means "it doesn't take much to push them over the edge," Eakin said.The World Meteorological Organization says most tropical waters already have seen surface temperatures rise by up to 0.5 C (1 F) in the past 50 years. The Intergovernmental Panel on Climate Change, the U.N. climate-science network, projects an increasing frequency of bleaching episodes that "is very likely to further reduce both coral cover and diversity are reefs over the next few decades."Many reefs have already been degraded by disease and the impact of human activities, including discharges of fertilizers and waste as well as overfishing of parrotfish and other species that help keep the corals clean and global healthy.The area covered by coral reefs has shrunk by 20 percent since 1950 and another 35 percent could disappear in the next 40 years, even without the impact of climate change, according to a report released in October by the World Meteorological Organization and the Convention on Biological Diversity.Off the Riviera Maya coast south of Cancun, where large swaths of mangrove forests have been cut down to make room for an endless row of beachfront resorts, only 15 percent of the coral reefs are alive, down from about 45 percent in 1995, said Fernando Secaira, who coordinates a Mesoamerican Reef program for the u.s. - based environmental group Nature Conservancy.The biggest problem, he said, is the rapid development, with tens of thousands of hotel rooms added only in the past decade. Fertilizers from lawns and golf courses and sewage from the developments filters through the limestone rock and is washed out onto the reef by underground rivers, altering the balance of the sensitive ecosystem.Secaira said such unhealthy reefs will find it difficult to adjust to warming waters, raising the risk they will be destroyed by bleaching or diseases. "The priority for conservationists is identifying the most resilient reefs, and protecting them as climate change sets in with full force, raising temperatures and acidifying the ocean, which limits the carbonate minerals that help corals grow.Scientists say no emissions cuts being considered by world governments will suffice to prevent that from happening.""We're going to lose more corals and more reefs before this is all over," said Eakin, of NOAA. "The question at this point is how many can we save."
Test flight of the new vessel private sea (the Arizona Republic)
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