🚀 Gravity Assist Simulator

Solar-system planets bend spacecraft paths with their gravity, and a moving planet adds speed for free. Explore freely or try to hit a target in Game mode.

Planet

Planet Speed

0

Flyby Altitude

50

Time Warp

View

Speed boost —

Speed in —

Speed out —

Deflection —

Min altitude —

Planet radius —

Planet velocity —

Current speed —

Current altitude —

Mission —

Fuel used —

Gold ≤ — Silver ≤ —

Best this session —