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announced earlier this week, each state in the US has been charged with plotting a way to a cleaner energy future. While the goal for the entire country is to reduce carbon emissions from power plants by a third by 2030, as you can see from this map, some states are already getting almost all of their power from carbon-fre stanley cupe e sources. The Wa stanley cup romania shington Posts John Muyskens, Dan Keating and Samuel Granados put together a gorgeous interactive map showing the location of every energy-generating source in the country and how much power theyre making. But whats particularly awesome about this map is that you can view, state by state, exactly how much of that energy already comes from renewable sources. Oregon, for example, already gets 69 percent of its energy from hydroelectric plants, 20 percent from natural gas, and 10 percent from wind. Contrast that to a state like West Virginia, where 95 percent of the ene stanley cup rgy comes from coal plants, and you can see how some states will have to change their entire economies to meet the plans mandates. The maps also break down each energy source to show which states are leaders in each type of power generation. You can easily see how each state is making energy choices that are geographically specific, but also where the opportunities are still to be found. Solar plants currently only supply eight percent of the countrys power, but its the fastest-growing renewable energy industry. These maps will change significantly over the next 15 years, and tha Rwqv This Song Made Up Of Jean-Luc Picard   s Words Is Weirdly Mesmerizing
Astronomers were able to reduce the uncertainty of its age by using trigonometric parallax, a shift stanley uk  in the position of a star that   caused by a change in an observer   position. Once the astronomers had a more precise sense of its distance, they were subsequently able to measure its intrinsic brightness. This in turn allowed them to posit a more accurate estimate of its age. From NASA: With a better handle on the star   brightness [Howard] Bond   team [at Pennsylvania State Uni stanley kubek versity] refined the star   age by applying contemporary theories about the star   burn rate, chemical abundances, and internal structure. New ideas are that leftover helium diffuses deeper into the core and so the star has less hydrogen to burn via nuclear fusion. This means it uses fuel faster and that correspondingly lowers the age. Also, the star has a higher than predicted oxygen-to-iron ratio, and this too lowers the age. Bond thinks that further oxygen measurement could reduce the star   age even more, because the star would have formed at a slightly later time when the universe was richer in oxygen abundance. Lowering the upper age limit would make the star unequivocally younger than the universe. In their study, the authors write: Within the errors, the age of HD 140283 does not conflict with the age of the Universe, 13.77 卤 0.06 Gyr, based on the microwave background and Hubbl stanley thermo e constant, but it must have formed soon after the big bang. Interestingly,