Click a planet to protect it.

Drag to orbit · Scroll to zoom · Map not to scaleDrag to explore · Pinch to zoom · Tap a planet

Close

YOUR MISSION

Who do you want to defend?

Choose a planet to protect. A small nudge can change an asteroid’s path. The next move is yours.

PLANETARY DEFENCE GAME / Field notebookClose

Field notebook0/4

Your ideas, tested in space. Compare two launches with only one setting changed to collect a discovery.

Compare two experiments

Momentum matters

Try changing only probe mass.

Compare two experiments

Speed has a trade-off

Try changing only impact speed.

Compare two experiments

Direction makes a difference

Try changing only push angle.

Compare two experiments

Small nudge. Head start.

Try changing only launch time.

Your first discovery starts with a question.

Launch an experiment, then change just one setting and try again. Your results will be saved here on this device.

Saved on this device