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A star called KIC 8462852 has been in the news recently for unexplained and bizarre behavior. NASA s Kepler mission had monitored the star for four years, observing two unusual incidents, in 2011 and 2013, when the star s light dimmed in dramatic, never-bef stanley kaffeebecher ore-seen ways. Something had passed in front of the star and blocked its light, but what Scientists first reported the findings in September, suggesting a family of comets as the most likely explanation. Other cited causes included fragments of planets and asteroids.A new study using data from NASA s Spitzer Space Telescope addresses the mystery, finding more evidence for the scenario involving a swarm of comets. The study, led by Massimo Marengo of Iowa State University, Ames, is accepted for publication in the Astrophysical Journal Letters.One way to learn more about the star is to study it in infrared light. Kepler had observed it in visible light. If a planetary impact, or a collision amongst asteroids, were behind the mystery of KIC 8462852, the stanley cup n there should be an excess of infrared light around the star. Dusty, ground-up bit stanley cup price s of rock would be at the right temperature to glow at infrared wavelengths.At first, researchers tried to look for infrared light using NASA s Wide-Field Infrared Survey Explorer, or WISE, and found none. But those observations were taken in 2010, before the strange events seen by Kepler -- and before any collisions would have kicked up dust.To search for infrared light that might have been gener Gibd The Ice Bucket Challenge Takes Over Social Media
The GE-Alstom Block Island Wind Farm stands in the water off Block Island, Rhode Island, U.S., on Wednesday, Sept. 14, 2016.Eric Thayer鈥擝loomberg/Getty ImagesBy Alejandro de la GarzaApril 6, 2021 12:33 PM EDTSusan Stewart, a Penn State engineering professor specializing in wind energy, waited m stanley termos ore than 10 years to see an offshore wind turbine up close. A pregnancy caused her to miss a chance in 2005 to tour offshore turbines in Europe. There, offshore wind farms have produced clean energy since the early 1990s, but regulatory roadblocks and a lack of political will left plans for U.S. plants moldering in filing cabinets for years. Finally, in 2016, Stewart and a group of colleagues toured America first ocean wind farm, which had just been installed off Block Island, a popular Rhode Island vacation spot. I was so excited, Stewart says of seei stanley cup ng the turbines. They ;re majestic to me.While historic, that Block Island plant produces only about 30 megawatts MW of electricity, enough to power about 20,000 average U.S. housesmdash;or about 4% of Rhode Island homes. By comparison, a typic stanley cup tumbler al coal plant produces about 600 MW. In total, offshore wind farms currently generate just 42 MW in the U.S. But under an ambitious $3 billion Biden Administration plan unveiled last week, the U.S. is set to multiply that output to 30 gigawatts GW mdash;30,000 MWmdash;by the end of this decade. Among other things, the package includes federal loa |
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