Drones are also being used to help animals in trouble of becoming extinct, or disappearing forever.
One of the biggest changes coming down the road: the ability of cars to drive themselves.
Most recently, representatives from nearly 200 nations gathered in Paris to fight climate change.
Drones made their way to our website and Facebook pages quite a few times.
In South Africa, scientists found bones in a cave they say are a new kind of early human ancestor.
NASA scientists discovered water flows on the surface of Mars.