Scientists have generated a genetic portrait of a four-billion-year-old organism that they say may be the oldest common ancestor of all living things.
To train for future missions to Mars, NASA is sending a group of scientists, engineers, and astronauts to the bottom of the ocean.
NASA scientists have analyzed samples of the red planet through Curiosity's ChemCam. But now, the four-year-old rover can take laser photos all on its own.
The Dragon spacecraft has safely delivered a docking station for future rockets at the International Space Station.
In the first six months of 2016, temperatures have been record hot – and it's not just because of El Niño.