File:ESOcast 150 Light.webm
Original file (WebM audio/video file, VP8/Vorbis, length 1 min 22 s, 3,840 × 2,160 pixels, 5.37 Mbps overall, file size: 52.44 MB)
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English: 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. Credit : ESO Editing : Nico Bartmann. Français : Une nouvelle étude a établi que les sept planètes en orbite autour de la naine rouge ultra-froide TRAPPIST-1 sont principalement constituées de roches, et que certaines d’entre elles pourraient renfermer plus d’eau que la Terre. Les densités des planètes, déterminées plus précisément qu’auparavant, suggèrent que certaines d’entre elles pourraient être constituées d’eau à hauteur de 5 pour cent de leur masse – à comparer aux océans terrestres qui ne constituent que 0.02% de la masse de la Terre.
Cet ESOcast offre un aperçu rapide de cet important résultat. Crédit : ESO Editing : Nico Bartmann. |
| Date | |
| Source | YouTube: ESOcast 150 – View/save archived versions on archive.org and archive.todayESOcast 150 Light: Planets around TRAPPIST-1 Probably Rich in Water |
| Author | ESO |
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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
  This file is licensed under the Creative Commons Attribution 4.0 International license.
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This file, which was originally posted to YouTube: ESOcast 150 Light: Planets around TRAPPIST-1 Probably Rich in Water, was reviewed on 13 February 2020 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:28, 26 February 2018 | 1 min 22 s, 3,840 × 2,160 (52.44 MB) | ComputerHotline (talk | contribs) | Imported media from https://cdn.eso.org/videos/ultra_hd/eso1805a.mp4 |
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