Does this planet have a “sibling” sharing the same orbit? | ESOcast Light

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have found the possible ‘sibling’ of a planet orbiting a distant star. This video summarises the discovery.

Credit:
ESO
Directed by: Angelos Tsaousis and Martin Wallner.
Editing: Angelos Tsaousis.
Web and technical support: Gurvan Bazin and Raquel Yumi Shida.
Written by: Claudia Sciarma and Tom Howarth.
Music: Stellardrone — Twilight.
Scientific consultant: Paola Amico, Mariya Lyubenova.

[bazpearce]

Could be an analogue of early Earth and Theia. How long could such a system remain stable? Probably not long, otherwise we would see this type of thing more often.

[David-bqj]

Poul Anderson, scientist and SF author, wrote a story Question and Answer, taking place in a system with a star and two worlds in a triangular Trojan configuration.

[ShyGuySpirit]

It wouldn't be a regular planet then. Just like Pluto, these two objects would be dwarf planets.

[rasverixxyleighraq]

These video's say ESOcast light, so are there longer versions somewhere?

[KCTattooist]

Point of our perspective it only looks like it shares orbit.

[leatherelf]

So this is a solar system still in formation? How many light years away is it?

[awaterlily]

Why did you guys get rid of the narration? And Dr. J? The videos used to be so much better with the lady voice narrator and with Dr J presenting. They could be shown in a teaching setting. Now it's just elevator music.

[mariadaluzmoutinho]

Esta dupla descoberta escrutinada pelo fabuloso ALMA guiada por uma brilhantissima estrela e dois planetas a partilhar a mesma órbita!! Serão gémeos falsos, como serão constituídos?! O Universo continua a espantar-nos pela sua criatividade!!