This eight minute Hubblecast video takes a look at gravitational lensing, explaining how it works and how it can help astronomers uncover the secrets of the Universe.

Hubblecast 70: Peering around cosmic corners

Last month saw the inauguration of a new Hubble observing program: Frontier Fields. This will use the powerful magnifying properties of massive galaxy clusters to peer even deeper into the space around us. Hubblecast 70 takes a look at this phenomenon — known as gravitational lensing — exploring how it works, and how it can help us to uncover the secrets of the very distant Universe.

Credit:

ESA/Hubble

Directed by: Nicola Guttridge

Visual design and editing: Martin Kornmesser

Written by: Nicola Guttridge & Georgia Bladon

Presented by: Joe Liske (Dr J)

Narration: Sara Mendes da Costa

Images and animations: ESA/Hubble, NASA, Martin Kornmesser