Rebecca Hersher

On Monday, the moon will completely eclipse the sun, and people all over the U.S. will watch.

For those who have been boning up on eclipse trivia for weeks, congratulations. For everyone else, here are the things you need to know about the phenomenon.

Where can I see the eclipse?

A partial solar eclipse will be visible everywhere in the contiguous United States, but to see the total solar eclipse, you'll need to be in a sash of land that cuts from Oregon to South Carolina.

More than two weeks after they were first spotted, wildfires on the western coast of Greenland are still burning, worrying local residents and drawing the attention of scientists.

Well-trained guide dogs are important for visually impaired people who rely on them. But many puppies bred to be guide dogs flunk out of training programs.

A study published Monday in the Proceedings of the National Academy of Sciences suggests the way a puppy's mother raises it may be the key to the dog's success, or failure. A research team at the University of Pennsylvania found that puppies destined for guide dog training are more likely to fail if they're coddled by their mothers.

The rain began on Good Friday. It fell into the roofless ruins of Port-au-Prince's Catholic cathedral. It swirled through stalls in the market downtown. In the hills above Haiti's capital, the rain ran off the clay roof tiles of upscale homes.

No matter where the rain fell, it was all destined for the same place: the system of concrete canals that cut through the city and down to the sea.

The first problem with the airplane bathroom was its location.

It was March. Greg O'Brien and his wife, Mary Catherine, were flying back to Boston from Los Angeles, sitting in economy seats in the middle of the plane. "We're halfway, probably over Chicago," Greg remembers, "and Mary Catherine said, 'Go to the bathroom.' "

"It just sounded like my mother," Greg says. So I said 'no.' "

Mary Catherine persisted, urging her husband of 40 years to use the restroom. People started looking at them. "It was kind of funny," says Greg.

"They're not gonna want me to play 'babies in space'," says Greg O'Brien. "You know, where I pick 'em up in my hands and I swirl them around over my head like a rocket ship. I always say 'Babies! In! Spaaaaace!' "

It's October 2016, and he is musing about the latest O'Brien family news. His daughter, Colleen, is due to have a baby in November, and ever since he found out, Greg has been struggling with competing emotions.

Emotions, the classic thinking goes, are innate, basic parts of our humanity. We are born with them, and when things happen to us, our emotions wash over us.

"They happen to us, almost," says Lisa Feldman Barrett, a professor of psychology at Northeastern University and a researcher at Harvard Medical School and the Massachusetts General Hospital.

Diagnosing attention deficit hyperactivity disorder can be difficult. The symptoms of the disorder, as defined by the Diagnostic and Statistical Manual, or DSM, have changed multiple times.

Even if you know what to look for, many of the symptoms are pretty general, including things like trouble focusing and a tendency to interrupt people. Discerning the difference between people who have a problem and those who are just distracted requires real expertise.

Twenty percent of children who were in a car crash where someone died were not buckled in properly or were not wearing a seat belt at all, a study finds, as were 43 percent of children who died themselves.

And child fatality rates in deadly car crashes vary widely by state.

Inflatable beds can be cheap, which is good news for consumers who want an alternative to pricey traditional mattresses. But their uneven, soft, impermeable surfaces are dangerous for babies, and can increase the risk of sudden infant death.

The dangers may be particularly acute for low-income families, a recent essay in the American Journal of Public Health argues.

Another day, another study undercutting the myth surrounding the 18th-century Italian violin maker Antonio Stradivari.

Since the early 20th century, musicians and instrument experts have been trying to figure out what, if anything, makes the violins he made sound better.

A new study suggests that skipping meals is difficult.

Obviously, right?

The study published Monday in JAMA Internal Medicine did not set out to investigate the hardships of abstaining from food. The main question was: Is alternate-day fasting more effective for weight loss and weight maintenance compared with daily calorie restriction?

Researchers in Germany have found that getting drunk is associated with abnormal heart rhythms.

Their study was conducted in a place teeming with potential research subjects.

The Food and Drug Administration says children under 12 should not be given prescription medicines that contain codeine or another narcotic, tramadol, and that such drugs can also be dangerous to youth between 12 and 18.

For more than 40 years, Oliver O'Reilly's shoelaces have been coming untied pretty much every day. And for most of those 40 years O'Reilly didn't think too much about it.

But then, about a decade ago, his daughter Anna was learning to tie her shoes, and O'Reilly decided his shoelace problem wasn't worth passing on to another generation.

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