The centre will use the research to find ways to counteract the negative impact of weightlessness on astronauts.
For two months, the participants will live in a single room but split into two groups.
One group will be rotated in a centrifuge, like an artificial gravity chamber, while the other group won't move, ABC News reported.
Scientists, medical professionals, physiotherapists and a nutritionist will be on hand to make sure participants are OK.
To participate, you need to be aged between 24 and 55 and a non-smoker. You need to be between 152cm and 190cm tall and have a BMI of between 19 and 30.
The centre is looking to recruit men and women.
There's a bit of a process involved in taking part, including a questionnaire, a follow-up event, and a mental and physical fitness assessment.
But for your efforts, you'll get some sweet rewards, including an expense allowance of €16,500 euros ($27,321).
If this sounds like the job for you, hit up the Germany Aerospace Centre website.
But just be aware, you'll need to translate the page from German to English.