File:Artist's View of Planets Transiting Red Dwarf Star in TRAPPIST-1 System (2016-27-3774).pdf

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Captions

Captions

This illustration shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our sun. The planets, TRAPPIST-1b and TRAPPIST-1c, reside 40 light-years away.

Summary[edit]

Description
English: This illustration shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our sun. The planets, TRAPPIST-1b and TRAPPIST-1c, reside 40 light-years away. They are between 20 and 100 times closer to their star than Earth is to the sun. Researchers think that at least one of the planets, and possibly both, may be within the star's habitable zone, where moderate temperatures could allow for liquid water on the surface. Hubble looked for evidence of extended atmospheres around both planets and didn't find anything. This leaves open the possibility the planets have thinner, denser atmospheres like Earth's.
Date 20 July 2016 (upload date)
Source Artist's View of Planets Transiting Red Dwarf Star in TRAPPIST-1 System
Author Illustration: , , and G. Bacon (); Science: , , and J. de Wit (MIT)
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Licensing[edit]

Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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