A free app for Android, by NASA.

NASA Science: Humans in Space is an educational science app for students and teachers. It provides information on the effects of microgravity on the human body, and contains a lot of challenges to assist students in understanding how gravity works.

This app is designed for use in the classroom, and can be used by teachers as an aid for teaching microgravity concepts to their students.

You will be challenged to perform your tasks on the H-II Transfer Vehicle, a robotic spacecraft that will transfer astronauts to the International Space Station.

The H-II Transfer Vehicle will launch to space on a SpaceX rocket, and once it is in orbit, it will be attached to the International Space Station.

Your job is to perform maintenance on the vehicle. But be aware that the H-II Transfer Vehicle is an extremely complex machine, and it will take you a while to figure out how to repair it.

If you perform your tasks while the vehicle is attached to the International Space Station, you will be able to benefit from the microgravity environment.

The app contains challenges to help you get better at controlling the H-II Transfer Vehicle.