If Update 31.3 does not download automatically, follow these update instructions, or buy Universe Sandbox via our website.

DART Mission

NASA’s DART mission will intentionally collide the DART spacecraft with the asteroid Dimorphos, attempting to change its orbit & testing humanity’s ability to protect Earth from future asteroids. Check out our simulation of this mission:

Open > DART: Humanity’s First Planetary Defense Experiment

More Highlights

Fragment temperature and glow from collisions are now realistically based on the collision energy. Low energy collisions, like the one shown here, don’t generate enough energy to make the particles glow.

Before
After

Camera transitions after the target collides are smoother

Before
After

Explosions now create rock fragments and dust clouds

Before
After

Under-the-hood improvements to make referencing known objects more reliable

This update includes 1+ additions and 20+ fixes and improvements.

Check out the full list of What’s New in Update 31.3

Please report any issues on our Steam forum, on Discord, or in-game via Home > Send Feedback.