News Physics

In a first, Galileo’s gravity experiment is re-created in space

Equivalence principle holds up inside an orbiting satellite

satellite illustration

FREE-FALLIN’  Scientists compared the acceleration of two objects in free fall in a satellite orbiting 710 kilometers above Earth (illustrated).

(c) CNES/Virtual-IT 2017

By Emily Conover

- More than 2 years ago

Galileo’s most famous experiment has taken a trip to outer space. The result? Einstein was right yet again.