DNA molecules attached to the outside of a rocket may be able survive a trip to suborbital space and back into the Earth's atmosphere at extremely high temperatures.
The leaders of the United States and Mexico spoke to discuss President Barack Obama's executive actions to overhaul aspects of America's immigration system.
The painted upright piano that adorned Rick's Cafe in the classic movie "Casablanca" fetched $3.4 million at auction Monday after a frenzied sale in New York.
The family of slain black US teen Michael Brown said they were "profoundly disappointed" by a grand jury's decision not to charge the white police officer.
North American cinema-goers had plenty of appetite for the latest "Hunger Games" movie, with the sci-fi survival flick debuting in the weekend box office's top spot.