“If you’re in space, it’s like you’re making a call via Houston, first you dial the 9 for an outside line, and then 011 for an international line,” he said according to science and technology website Futurism.
Forgetting to dial 0, Kuipers accidentally set off an alarm at Johnson Space Center in Houston.
It’s not the first time an astronaut has dialed the wrong number from the ISS.
I’d like to apologise to the lady I just called by mistake saying ‘Hello, is this planet Earth?’ – not a prank call…just a wrong number!
— Tim Peake (@astro_timpeake) December 24, 2015