Hayden Godfrey, 17, wanted to make as many people happy as possible.
Gravitational waves have been detected a century after Albert Einstein first proposed their existence.
Sue Klebold, the mother of Columbine shooter Dylan Klebold, told Diane Sawyer that when the Columbine tragedy happened, she couldn’t stop thinking about the victims.
Humanitarian aid would be delivered to besieged cities within days, and the cease-fire would go into effect in a week, American and Russian officials announced.
The heads of the Catholic and Russian Orthodox churches are meeting today.