Click on the image below to launch the Gravity science interactive.

Gravity interactive

When a spacecraft orbits a solar system body, forces of gravity tug on it. Despite fast orbital speed, changes as small as .04 mm/sec can be detected!

Scientists realized these variations are clues to how materials inside the body are organized. Gravity helps measure the materials’ density & the composition of different regions across and below the surface.

Missions like Dawn map these forces to build a concept of a body’s internal structure.

Interactive developed by Optera Group, Denver, Colorado in collaboration with McREL International. ©2017