This is your accumulated science. Click here to show the research screen. The number in parenthesis is your income per tick.
This is your accumulated Gold. Spend gold to build bulidings on your planets. The number in parenthesis is your income per tick.
This planet is your home world. Click it to view its details, or to build bulidings.
This planet is your opponent's home world.
This outer circle indicates the planet's influence. Influence grows over time, by the amount indicated in the planet screen. When this circle overlaps another planet, then that planet is claimed by you.