I'll go ahead and post this here, and move it if it's accepted. 

Name: Annett Cline
Brief Description: Hoping to study Mars and the stars but unable to get a grant, she boarded the cheapest flight to Mars. Back on Earth when she was 21, she was in a machinery-related accident at a factory job, and lost her right arm at the shoulder. Luckily she got a cybernetic replacement, equipped with all the 'sensors' of a real arm, as well as EM sensors; she controls it with her brain. She hasn't fully come to terms with how it makes her look or the original trauma of the accident. 
Occupation: Amateur astronomer
Age: 29