query: what was tycho brahe theory?
answers: [ " B r a h e ' s a s t r o n o m i c a l i n v e s t i g a t i o n s b e g a n t o s u g g e s t t h a t t h e e x i s t i n g l i t e r a t u r e o n t h e s o l a r s y s t e m w a s i n a c c u r a t e . " ]