In which Alice Roberts responds to a tweet.
In which I admire a friend's brain-scan.
William Shatner tweets with an astronaut. Astronaut keeps it in character.
Pope uses knob image for Twitter wallpaper.
via his Twitter feed.
Chinese author Mo Yan wins Nobel Prize for Literature.
That last bastion of liberal impartiality (Rupert Murdoch) is under treat.
Wayne Rooney on Twitter.
Playboy's Hugh Hefner to marry Playmate Crystal Harris