ESOcast 233 Light: Six-Exoplanet System with Rhythmic Movement Challenges Theories of How Planets Form

Using a combination of telescopes, including the Very Large Telescope of the European Southern Observatory (ESO's VLT), astronomers have revealed a system consisting of six exoplanets, five of which are locked in a rare rhythm around their central star. This video summarises the discoveries and explains why this puzzling system is challenging our theories of how planets form.

The video is available in 4K UHD.

The ESOcast Light is a series of short videos bringing you the wonders of the Universe in bite-sized pieces. The ESOcast Light episodes will not be replacing the standard, longer ESOcasts, but complement them with current astronomy news and images in ESO press releases.



Directed by: Herbert Zodet.
Editing: Herbert Zodet.
Web and technical support: Gurvan Bazin and Raquel Yumi Shida.
Written by: Anna Purdue, Justin Tabbett and Bárbara Ferreira.
Music: tonelabs ( – Orion Fog.
Footage and photos: ESO, C. Malin (, L. Calçada/Space Engine ( and M. Kornmesser.
Scientific consultants: Paola Amico and Mariya Lyubenova.

About the Video

Release date:25 January 2021, 16:00
Related releases:eso2102
Duration:01 m 26 s
Frame rate:25 fps

About the Object

Type:Unspecified : Star : Circumstellar Material : Planetary System

Ultra HD (info)



Video Podcast
19.4 MB

For Broadcasters


67.5 KB