Simplify the following text for a Grade 8 native English-speaking person.
Original: A month later , Samus awakens aboard a Galactic Federation star ship , where she learns that Dark Samus ' Phazon-based attacks have corrupted her .
Simplified: A month later , Samus finds out that Dark Samus ' Phazon ( like poison in our world but worse ) based attacks have corrupted her .