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Using the dusty Milky Way light, the scientists were able to figure out precisely how their instruments were oriented, so they knew the rotation in the light was real, not something caused by their instruments. This allowed them to determine the polarization rotation of CMB light was non-zero, which means that the light has interacted with something that violates parity. It's possible something in the early universe affected the light, but it's more likely that it was something along the light's path as it traveled toward Earth, Minami told Live Science.  … [Read more...] about Twisted light from the beginning of time could reveal brand-new physics

Joe Biden and Kamala Harris were sworn in as president and vice president, respectively, on Wednesday in a fanfare-filled ceremony in Washington, DC. Though the public couldn't attend, many people watched the events on TV or via livestreaming, and from singer Lady Gaga's elaborate dove pin to Sen. Bernie Sanders' giant mittens, they found plenty of opportunities for memes and jokes. … [Read more...] about Bernie Sanders’ big mitten energy won the inauguration meme game

Whether that’s likely to happen, though, is anyone’s guess. The Antiquities Act has been pretty successful throughout history for setting aside many of America’s most beloved places, like the Grand Canyon, Leshy wrote in an email to The Verge. So if Congress changed the law to abolish some existing national monuments, they could receive a huge public backlash. If people speak up, it’s likely that Obama’s legacy for protecting important environmental and cultural sites will stay untouched. … [Read more...] about Obama’s five new national monuments set a US record for land protection

Through legislation like the Clean Air Act and the Clean Water Act, the EPA has ensured that Americans live in a relatively healthy environment. Thanks to the EPA’s work, from 1970 to 2015, national emissions of pollutants like lead, carbon monoxide, and nitrogen dioxide have declined by an average of 70 percent. These and more changes meant 160,000 people in the US didn’t die prematurely due to air pollution in 2010 alone. Since the 1980s, the EPA has also worked with local authorities to clean up some of the most polluted sites in the US, from landfills that caught fire to radioactive waste housed close to residential areas. … [Read more...] about Trump’s budget is very bad news for science research

The US turned its back on efforts to tackle the climate crisis together as a planet when Donald Trump made the decision to withdraw from the Paris agreement. Trump decimated federal efforts to slash emissions within the US, and he stood by other right-wing leaders — like Brazil’s Jair Bolsonaro, who similarly dismantled environmental protections — even as their countries burned like never before because of climate change. Now, the US needs to regain the world’s trust and show that it means business when it comes to taking on climate change. … [Read more...] about The US will rejoin the Paris climate agreement, but that was the easy part