Watch: Elon Musk on the BBC row
In a last-minute interview with the BBC's James Clayton, Mr Musk was asked about the "government funded" Twitter label.
Category Archives: Science
Ever wonder what it’s like to live on Mars?
For a full year, four people will live in a simulation of the planet to help Nasa prepare for human exploration there.
Climate change: Fossil fuel emissions from electricity set to fall – report
Rise in wind and solar energy means that use of coal, oil and gas may have peaked for energy production.