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Stars, galaxies, and the Sun

Stars, galaxies, and the Sun

Schematic showing Earth and the Sun, then the Sun located inside the Milky Way galaxy with other stars much farther from Earth

A star is a huge sphere of hot gas that gives out energy, including light. The Sun is a star.

6.2.2a Galaxies and astronomical distances Lesson

  1. IGCSE
  2. /Physics
  3. /6.2.2a Galaxies and astronomical distances

Step-by-step lessons on CIE IGCSE Physics 6.2.2a Galaxies and astronomical distances. Each one builds up to exam-style questions. Build a strong foundation in mechanics and electricity before tackling the more mathematically demanding astrophysics and nuclear topics.

Lessons