Move in.
Changes to the tests.
Solar system needs revising.
Nothing compiles.
Trajectories at construction.
Close to compiling, with trajectory in the constructor.
Tests passing.
First testing of fork, need to read from parent.
Death test naming convention.
Positions et al return map.
It compiles.
Fork testing.
last_ functions.
last_ test.
More testing.
Forget tested.
Removing bursts.
Cleanup.
Linting.
More linting.