It's lonely on Mars - especially when it's your birthday and there's no one around to celebrate with.
Nasa's Curiosity Rover will overcome some of the solitude that accompanies its first anniversary on the red planet by singing 'Happy Birthday' to itself.
Obviously lacking in vocal chords or any kind of loudspeaker, the rover's handlers have come up with an ingenious way to hum the tune.
They will run the motor on Curiosity's soil analysis system at just the right frequencies to recreate it.
Curiosity is currently trundling its way along the towards its primary mission destination of Mount Sharp.
Its primary goal to find "evidence for an ancient wet environment that had conditions favourable for microbial life" has already been accomplished.