What force holds planets in orbit around the Sun?

Gravity

What winged monster was defeated by Perseus? Which "Mean Girls" actor starred in Swift’s "Thanksgiving Special" parody skit on "Saturday Night Live"? What reptile inflates its body and spreads a large frill when feeling threatened? Which American city is home to the NFL Giants and Jets? What famous Native American woman is shown guiding Europeans in the engraving with Captain John Smith?