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Edexcel IGCSE Physics · Spec 8.2

Stellar Evolution

The life cycle of stars, from nebula to their final stages.

Physics revision video

Stellar Evolution

Spec 8.2

What you need to know

  • Describe how a star forms
  • Explain the main sequence
  • Describe how stars end their lives

Active recall

Quick check

Answer each question before opening the answer.

Outline the life cycle of a star like the Sun.

Nebula → main sequence star → red giant → white dwarf.

What happens to a star much more massive than the Sun at the end of its life?

Red supergiant → supernova → neutron star or black hole.

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