Simplify the following text for a Grade 9 native English-speaking person.
Original: After serving in NASA from 1987 to 1993 , Jemison founded The Jemison Group , Inc. , which developed ALAFIYA , a satellite-based telecommunications systems .
Simplified: Jemison was turned down on her first application to NASA , but in 1987 Jemison was also accepted on her second application .