Building a better battery is the holy grail for people who want better technology. Now researchers at the University of Texas, Austin say they may have found that battery — or something close. But their claims have sparked controversy.

At the center of this debate is a towering figure in the world of science — John Goodenough, who teaches material science at the university.

Nicky Hayden, a champion motorcycle racer, died at an Italian hospital Monday, five days after being struck by a car while bicycling as part of his training on the Rimini coast.

The 35-year-old had suffered trauma to his head, chest and abdomen after colliding with the car's windshield, leaving him in critical condition at Maurizio Bufalino Hospital in Cesena.

The hospital confirmed Monday that he died "following a very serious polytrauma."

Picture a kaleidoscope of color and a medley of vivid African print cloth surging forward amid screams and weeping — for joy.

That was the magnificent and moving scene, Saturday, in the Nigerian capital, Abuja, as 82 former Chibok schoolgirls — now young women — were reunited with their mothers, fathers, aunts, uncles and other family members, after three years in Boko Haram captivity. Tears were streaming down their faces and gave way to broad smiles of happiness and relief after years of torment and trauma and missing their families.

One in eight Americans — 42 million people — still struggles to get enough to eat. And while that number has been going down recently, hunger appears to be getting worse in some economically distressed areas, especially in rural communities.

Food banks that serve these areas are also feeling the squeeze, as surplus food supplies dwindle but the lines of people seeking help remain long.

Homeland Security Secretary John Kelly has extended for six months a program that has allowed tens of thousands of Haitians to remain in the U.S. following the 2010 earthquake in Haiti.

But Trump administration officials say they believe conditions are improving on the Caribbean island and that Haitians should make plans to return to their home country.

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/.

The ransomware attack on worldwide computer networks earlier this month largely spared those of the federal government. While the government dodged a bullet this time, experts say, its systems are still vulnerable — although perhaps less so than in the past.

When the global malware attack — dubbed "WannaCry" — was first detected, a government cybersecurity response group moved quickly.

A South African professional hunter died Friday after being crushed by an elephant after the animal was fatally shot on a game reserve in Zimbabwe.

51-year-old Theunis Botha was leading a hunting group when they stumbled upon a breeding herd of elephants at the Good Luck Farm near Hwange National Park, Zimparks spokesman Simukai Nyasha tells The Telegraph.

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