ESOcast 150 Light: Planets around TRAPPIST-1 Probably Rich in Water

A new study has found that the seven planets orbiting the nearby ultra-cool dwarf star TRAPPIST-1 are all made mostly of rock, and some could potentially hold more water than Earth. The planets' densities, now known much more precisely than before, suggest that some of them could have up to 5 percent of their mass in the form of water — about 250 times more than Earth's oceans.

This ESOcast takes a quick look at this important result.

Oikeudet:

ESO

Editing: Nico Bartmann.
Web and technical support: Mathias André and Raquel Yumi Shida.
Written by: Nicole Shearer and Richard Hook.
Music: Music written and performed by: Colin Rayment & Stan Dart.
Footage and photos: ESO, L. Calçada, spaceengine.org, M. Kornmesser.
Directed by: Nico Bartmann.
Executive producer: Lars Lindberg Christensen.

Videosta

Tunnistus:eso1805a
Julkaisupäivä:5. helmikuuta 2018 17:00
Vastaavat julkaisut:eso1805
Kesto:01 m 21 s
Frame rate:30 fps

Kohteesta

Nimi:TRAPPIST-1
Tyyppi:Milky Way : Star : Circumstellar Material : Planetary System
Kategoria:ESOcast
Exoplanets

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