Science
Officials at Elon Musk's company said the upper stage was lost, minutes after it launched.
Read More
Amazon founder Jeff Bezos's space company blasts its first rocket into orbit in a challenge to Elon Musk.
Read More
Advances in technology raise questions about the need to send people to space - and the risks and cost
Read More
The planet Uranus and its five biggest moons may not be the sterile worlds scientists have long thought.
Read More