Planets form around it, and the star enters the main sequence. After millions of years ... begins once again to complete the stellar life cycle. Finally, remnant stars with a mass of less than ...

The questions in this quiz are suitable for GCSE physics students studying the formation and life cycle of stars, main sequence stars and supernovae. If you struggled with the quiz, don't panic ...

One is a hypothetical white dwarf that's passed through much of its life cycle and is on a slow path to stellar death. The other subject is Kepler-62, a "main sequence" star at a similar phase in ...