Matching sets of dinosaur footprints found on opposite sides of the Atlantic Ocean
Analysis-Astronauts' plight piles pressure on Boeing's struggling space unit
Ancient viral genomes preserved in glaciers reveal the history of Earth’s climate – and how viruses adapt to climate change
SpaceX 'go' to launch private Polaris Dawn spacewalk mission on farthest human spaceflight since Apollo
A third of the world’s population lacks internet connectivity − airborne communications stations could change that
What is mental imagery? Brain researchers explain the pictures in your mind and why they’re useful
Meet the 4-person crew spearheading SpaceX’s daring Polaris Dawn mission
Billionaire to launch on SpaceX flight featuring first commercial spacewalk
