pollution
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Seeing Too Much Light at Night May Raise Your Stroke Risk
Too much light at night may be bad for our brains, research out this week suggests. In a population of city residents in China, researchers found a link between increased exposure to artificial outdoor light at night and a greater risk of stroke. Unsurprisingly, they also found that more exposure to air pollution was linked…
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Dusting and Mopping Better Than Air Purifiers for Cleaning Indoor Air After a Wildfire
Even after smoke from a wildfire has visibly cleared, lingering toxins indoors can tank air quality and threaten our health. Harmful chemicals stick around on surfaces and release into the air—and, new research found, air filters won’t get rid of them. In a study published last month in Science Advances, scientists documented how smoke leaves…
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Satellite’s Final Moments Captured Before Intentional Destruction
In late July, the Aeolus Earth Explorer satellite plunged through Earth’s atmosphere to burn up as scraps. Its unprecedented controlled reentry was captured through a series of images that show the spacecraft during its tumbling, fiery demise. The European Space Agency (ESA) released a new animation made from the last eight images taken of Aeolus,…
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NASA Wants a Giant Inflatable Bag to Collect and Throw Out Space Junk
Picking up the trash in space could be as easy as stuffing pieces of defunct spacecraft into a giant bag, closing it up, and tossing the pesky space junk into an orbital recycling plant. At least that’s what space startup TransAstra hopes to do with its inflatable capture bag. NASA recently awarded the California-based company…