Realizing the dream of space: Astronaut Peggy Whitson on leaving Earth for the first time03:38
Peggy Whitson made history several times in her career as an astronaut. She spent a record-breaking 665 days in space and became the first woman to command the ISS. In this interview, she describes her historic first spaceflight.
China's experiment proves life is possible on the Moon01:21
Watch this huge floating ice disk found rotating in Maine river01:08
This is how solar panels work01:15
CES 2019 Round up: 8K TVs and smart tractors01:26
Citizen scientists discovered a remarkable new exoplanet01:36
Hyundai unveils its ‘walking car’ at CES01:06