☄ Comet ▾
Mass
Speed
Direction
Aim
Launch ☄
Solar System
Full N-body gravity — every body pulls on every other (the Sun is free too).
Scroll
to zoom ·
click a body
to follow ·
[E]
Earth view ·
[0]
reset view ·
[C]
launch comet (tune it in the ☄ panel) · [Space] pause · [↑ ↓] speed · [R] reset