Drones are also being used to help animals in trouble of becoming extinct, or disappearing forever.
NASA scientists discovered water flows on the surface of Mars.
Back in 1969, it was the Apollo 11 crew who flew to the moon in a spaceship.
A court in Brazil Thursday suspended the messaging service WhatsApp for 48 hours.
Humans need less sleep than other mammals, yet their slumber is more efficient, said researchers at Duke University in North Carolina.
Technology company Google has brought reliable Internet connections to Kampala, Uganda.
University of Washington researchers say they used a laser to turn hot water into cool water.
Prince Charles says he has been talking about climate change at global conventions and conferences for 20 years.
Terrorist attacks in Paris are not expected to stop the United Nations from hosting a major climate conference in that city.
One of the big changes is that cars will drive themselves.