Millions of viewers are tuning in for science-related YouTube videos like one that gives a tour of the Large Hadron Super Collider and clips of little-seen giant sea creatures.
NASA astronaut Karen Nyberg said she can't wait for this weekend's arrival of a new cargo ship – and a fresh supply of chocolate. Dark or milk?
Astronaut Karen Nyberg goes viral while washing her hair in zero gravity on YouTube. How the ordinary can bring us together.