Simplify the following text for a Grade 10 native English-speaking person.
Original: Neptune 's closest four moons , Naiad , Thalassa , Despina , and Galatea , orbit close enough to be inside Neptune 's rings .
Simplified: Neptune 's innermost four moonsâ '' Naiad , Thalassa , Despina and Galateaâ '' orbit close enough to be within Neptune 's rings .