Here we're looking at how stretching space predicts the change in recession velocity of galaxies. If you stretch a piece of...

Classroom Activity 14-16

The universe is the sum total of everything that exists–the aggregate of existing matter, radiation, time and space. The most...

Physics Narrative 11-14

The universe is expanding; don’t confuse this with the big bang (see episode 705: Cosmology).

Lesson 16-19

Cosmology is the study of the origins, history and future of the universe. The currently favoured model is the big bang.

Lesson 16-19

A selection of videos to use remotely with your students.

Remote teaching support 11-14 14-16 16-19

In this activity students build a model universe using washers and elastic bands. You can use it to introduce Hubble’s law.

Practical Activity 14-16 16-19

Many children love learning about space. It is a topic filled with awe and wonder. Yet even now the subject is rife with...

CPD 11-14 14-16 16-19