Many people like to use their phones or tablets at night before they go to sleep.
President Barack Obama will become the first sitting U.S. president to visit Hiroshima, Japan.
NASA — the U.S. space agency — said it found nearly 1,300 planets outside our solar system.
Former Facebook workers said this week that the social media company often avoided letting news popular among conservative Americans appear in its “Trending” section.
The American car-maker General Motors and Lyft Incorporated, a ride-sharing service, reportedly will start testing GM automobiles as driverless taxis.
Sadiq Khan is the new mayor of London.
In a surprise move, the acting speaker of Brazil’s lower chamber of Congress called for a new vote in the impeachment process against President Dilma Rousseff.
The country of choice for secret offshore accounts opened by Panamanian lawyers is a small island nation, the British Virgin Islands.
American Douglas Lindsay left prison last November — after 19 years and 28 days.
Scientists studying the area where the Amazon River meets the Atlantic Ocean were in for a surprise.