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Giant exotic spiders are invading the eastern United States — and experts warn they’re here to stay

Jor? spiders are brightly colored, as big as your hand, travel by a method known as ballooning — and, according to a recent study, they will soon be all over the eastern United States. But don’t worry — these spiders are not considered to be a threat to humans. They have a timid temperament and therefore do not attack humans; even if they did, their fangs are not sharp enough to penetrate human skin....

Originally posted on salon.com

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NASA asteroid mission unveils a surprise moon orbiting Dinkinesh

The word “Dinkinesh” is Amharic for “marvelous,” and the small main belt asteroid Dinkinesh has lived up to its Ethiopian moniker: When the NASA spacecraft Lucy flew by what it had anticipated would be only one asteroid, it found two asteroids for the price of one.

“Dinkinesh really did live up to its name; this is marvelous,” Hal Levison, principal investigator for Lucy from the Boulder, Colorado, branch of the San-Antonio-based Southwest Research Institute, said in a statement....

Originally posted on salon.com

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Expert climatologist says the Earth is heating up even faster than predicted

Back in the 1980s, Columbia University climatologist Dr. James Hansen was a lonely voice warning humanity about the threat of man-made climate change. Aside from a handful of politicians (including future US Vice President Al Gore), Hansen’s insights were largely ignored during that decade, though the fossil fuel industry was well aware of this growing problem and tried to downplay it....

Originally posted on salon.com

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Jonas Salk, the man who cured polio, “would be shocked” by anti-vaxxers, experts say

Polio is a highly infectious viral disease that invades the nervous system and can trigger total paralysis in a matter of hours. It mainly targets children under age 5, and at one time disabled and killed thousands of American children every year. Today, all that is a distant memory. The World Health Organization recently estimated that, thanks to polio vaccines, “More than 20 million people are able to walk today who would otherwise have been paralyzed....

Originally posted on salon.com

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Earth’s salt cycle is swinging out of balance, posing yet another “existential threat,” study finds

It is not pleasant to imagine that human activity is making the planet uninhabitable, but we typically think of this in terms of greenhouse gases, rising sea levels or acidifying the oceans. We aren’t typically concerned with how salty things are.

Yet a recent study published in the journal Nature Reviews Earth & Environment identifies a wealth of industrial activities from construction and agriculture to water and road treatment as making the planet Earth too salty — literally....

Originally posted on salon.com

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Mice embryos successfully grown in space, a promising milestone for human space exploration

Most of the recent news about the International Space Station (ISS) hasn’t been very positive recently, from Russian cosmonauts dodging a cooling leak during a space walk to NASA’s ongoing plan to crash the ISS into the ocean (which will largely benefit private space exploration companies). Yet in a major leap forward for biological sciences, a new study in the journal iSciences reveals that humans were able to successfully culture mouse embryos while aboard the ISS....

Originally posted on salon.com

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