Health & Science

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This summer, the northern hemisphere sees some pretty spectacular astronomical events. The Perseid meteor showers will peak in mid August and about a week after that, parts of the United States will witness the first total solar eclipse since 1979. It’s also the first one visible from the Pacific ocean to the Atlantic since 1918.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Republicans in the Senate on Thursday unveiled their plan to repeal and replace the Affordable Care Act — also known as Obamacare. The long-awaited plan marks a big step towards achieving one of the Republican party's major goals.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

One of nature's most efficient life-support systems is the egg. Eggs evolved over 300 million years ago as vertebrate animals adapted to living on land. And since then, they've taken on numerous shapes, especially among birds.

Biologists have long wondered why there are so many shapes, and what determines each one. Hummingbirds, for example, have eggs like Tic Tacs. Birds called murres produce eggs shaped like big teardrops. Some eggs are more like pingpong balls.

Now, an international team of scientists believes it has solved the mystery of the eggs.

 

From canning, to fermenting, to dehydrating, Christina Ward is an expert in teaching Milwaukeeans how to conserve food. Her new book, Preservation, and she says that among the many professional hats she wears, there is one she’s particularly proud of.

“I’m the master food preserver, which means I’m a volunteer in my community charged with giving people the latest and greatest science,” says Ward.

 

In May 2015, then-President Barack Obama signed into law legislation that created a new kind of public emergency notification — the Blue Alert.

It's similar to the well-known Amber Alert for abducted children, but is meant to help catch people who credibly threaten or actually harm law enforcement officials.

The humanitarian aid system is broken.

That's the message of a new paper by Paul Spiegel, a former senior official at the U.N. High Commissioner for Refugees (UNHCR). The piece was part of a special series on health and humanitarian crises published by the British medical journal The Lancet in early June.

If you're standing in the blazing sun struggling to read this on your cellphone, there may be some relief in sight.

And you'll have a moth to thank.

The reason you have to find shade to read your phone is the way the light reflects off the screen. The reflection reduces contrast, washing out images.

Updated at 2:32 p.m. ET

Senate Republicans unveiled their long-awaited health care overhaul proposal on Thursday. The Senate bill, called the "Better Care Reconciliation Act," would repeal major parts of the Affordable Care Act, also known as Obamacare. The broad outlines of it look a lot like the House bill, the American Health Care Act, which was passed in May.

Thanks to Sigmund Freud, we all know what it means to dream about swords, sticks and umbrellas. Or maybe we don't.

"For 100 years, we got stuck into that Freudian perspective on dreams, which turned out to be not scientifically very accurate," says Robert Stickgold, a sleep researcher and associate professor of psychiatry at Harvard Medical School. "So it's only been in the last 15 to 20 years that we've really started making progress."

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