Highlights from the annual high-tech show in Las Vegas.
Photos: Science & Technology
The top space images of 2019 from Reuters.
A look back at NASA's last moon mission.
Photos from NASA's second moon-landing mission.
Images of the famous inventor from the collections at the National Archives and the Library of Congress.
NASA unveils its new prototype space suit.
Wind generators and wind farms around the world.
A look at robots working and performing among humans.