Mission 01BlinkMission 00Start hereMission 01Find the ExoplanetMission 02The Seven WorldsMission 03Reading an AtmosphereMission 04How Far Is That Star?Mission 05Weigh the Black HoleMission 06How Old Is the Universe?Mission 07The Planet Found on Paper
Start here
No reading first. Watch something happen, then do it yourself, and only then find out what it is called.
Watch the star
A planet is going round this one. Keep your eye on the graph underneath.
How bright the star is
Wait for it.