Robotic lawnmowers around the world have been given an update to sing Happy Birthday at certain times today to celebrate the Curiosity Rover’s 10th anniversary on Mars.

An unusual global harmony is happening today, to celebrate the birthday of the “loneliest robot in the universe”, NASA’s Mars Curiosity Rover.

On this date in 2012, the Curiosity Rover landed on Mars. Rover celebrated the achievement a year later by singing himself Happy Birthday. To conserve the robot’s battery supply, he never sang the song again.

To celebrate the robot’s anniversary, lawnmower maker Husqvarna has given 100,000 robotic lawnmowers the ability to sing “Happy Birthday” to their robot on Mars.

Owners of a riding lawnmower who wish to participate can download the latest update, which will fit their robotic car with singing capabilities. Once installed, the machines will sing today at 12:00, 15:00 and 18:00 local time.

Husqvarna said its Automowers have a small buzzer for alarms and audio notifications. The company’s engineers adapted this buzzer to create a series of musical notes for the occasion.

Three of the company’s robot models will be able to sing the song, which are the 405X, 415X and 435X AWD Automowers.

Although the Happy Birthday song hasn’t been sung for the Curiosity Rover in some time, this isn’t the only birthday celebration the robot has had. For his 4th anniversary, NASA released a mini-game on Android and iOS devices to drum up interest in the rover’s mission.

The humble Curiosity Rover tweeted that its team members have one Question and Answer Event on Twitter Spaces today, to celebrate the rover’s various achievements over the past 10 years.

This won’t be the last time robotic lawnmowers sing, as Husqvarna plans to make the Happy Birthday song available to Automower owners permanently this September, to bring “joy to future family birthday celebrations.” Maybe the robots will sing for the Curiosity Rover every year.

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