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Our place in the Universe

Our place in the Universe

The Universe includes everything that exists: all space, matter, energy, stars, planets and galaxies. A galaxy is a huge collection of stars, gas and dust held together by gravity.

6.2.3a Galaxies and the scale of the Universe Lesson

  1. IGCSE
  2. /Physics
  3. /6.2.3a Galaxies and the scale of the Universe

Step-by-step lessons on CIE IGCSE Physics 6.2.3a Galaxies and the scale of the Universe. 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