A new app called Friends in Space allows you to say "hello" to Italian astronaut Samantha Cristoforetti while she's stationed in the International Space Station (ISS).
If you're lucky, she might say hello back. That is, if she's orbiting your region of earth.
The online app was created by an Italian design studio called Accurat in collaboration with Cristoforetti, and let's you follow her travels and day-to-day work while she's in space. When she's not orbiting nearby, users can communicate with other people who are also following her mission.
Cristoforetti is a European Space Agency (ESA) astronaut who used to be a fighter pilot in the Italian Air Force. She shares a lot of her work on social media.