Simplify the following text for a Grade 10 native English-speaking person.
Original: The Cloverleaf Quasar ( H1413 +117 , QSO J1415 +1129 ) is a bright , gravitationally-lensed quasar .
Simplified: The Cloverleaf quasar is a quasar that has been mirrored and split into four images that look almost the same , looking like a cloverleaf .