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It's been a year since Christiane Heinicke has had an egg. Or been in a car. Or gone outside without a spacesuit.

Since last August, the German physicist has been living five other people in a 1,200-square-foot, solar-powered dome on the side of a Hawaiian volcano in an experiment in Mars-like living. The project, known as the Hawaii Space Exploration Analog and Simulation, or HI-SEAS, ended Sunday.

Treatment for life-threatening allergic reactions is about to get a little cheaper.

Mylan, the maker of the EpiPen, said Monday that it will launch a generic version of the device for half the price of the brand-name product.

Brazil's suspended president, Dilma Rousseff, faced her country's Senate on Monday, making one last case for herself as her impeachment trial nears its end.

"I have honored my commitments to democracy and the rule of law," she told the senators, according to a BBC interpreter. "I am going to look in your eyes and I will say with the serenity of someone who has nothing to hide that I haven't committed any crimes."

A crime lab in Brussels has been set on fire in what prosecutors describe as an apparent attempt to destroy evidence.

Around 2 a.m. local time, the perpetrators reportedly rammed a car through barricades at Belgium's national crime institute and then set fire to a lab, Teri Shultz reports for NPR from Brussels.

Five people have been detained in connection with the attack, says Ine Van Wymersch, a spokeswoman for the Brussels prosecutor's office. "This location was not chosen by accident," she says.

A suicide bombing in Yemen has killed at least 54 people in the southern city of Aden, The Associated Press reports, citing Yemen's health ministry.

Earlier the medical charity Doctors Without Borders, also known as MSF, posted on Twitter that one of their hospitals had received 45 wounded and was treating another 60-some wounded.

The attack has been claimed by the Islamic State, NPR's Alison Meuse reports, and an ISIS-affiliated news outlet says the bombing targeted an army recruitment center.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

The rumbling started on the afternoon of May 22, 1960. Sergio Barrientos, then about 8 years old, was walking down a street in his hometown in southern Chile when the ground started to shake. He remembers electrical wires swinging from the telephone poles — so violently that they slapped each other from opposite sides of the street.

"At the same time, I saw some of the chimneys falling down through the roofs of the houses," says Barrientos.

We're not going to bury the lead here: Bob Ross' hair was actually straight. Just ask his longtime business partner Annette Kowalski, who knew Ross better than anyone — he had just gotten out of the Air Force, and was unsuccessfully trying to make a living as a painter, she says.

"He got this bright idea that he could save money on haircuts. So he let his hair grow, he got a perm, and decided he would never need a haircut again," Kowalski explains.

You've likely heard that dark chocolate is good for you.

Last year, researchers linked a regular chocolate habit to a reduced risk of heart disease.

And, as we've reported, compounds found in cocoa known as flavanols or polyphenols have been shown to improve vascular health by increasing blood flow.

Immigration has been a galvanizing issue in Donald Trump's campaign from the beginning.

More than three dozen just-released audits reveal how some private Medicare plans overcharged the government for the majority of elderly patients they treated, often by overstating the severity of certain medical conditions, such as diabetes and depression.

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