sábado, 17 de febrero de 2018

Hubble Observes Atmospheres of TRAPPIST-1 Exoplanets in the Habitable Zone



Hubble Observes Atmospheres of TRAPPIST-1 Exoplanets in the Habitable Zone



Astronomers using the Hubble Space Telescope have conducted the first spectroscopic survey of Earth-sized planets in the TRAPPIST-1 system's habitable zone. Hubble reveals that at least the inner five planets do not seem to contain puffy, hydrogen-rich atmospheres similar to gaseous planets such as Neptune. This means the atmospheres may be more shallow and rich in heavier gases like carbon dioxide, methane, and oxygen. Find the full story and press release at http://hubblesite.org/news_release/news/2018-07 The Nature Astronomy science paper is available at https://doi.org/10.1038/s41550-017-0374-z Credit: NASA’s Goddard Space Flight Center/Katrina Jackson Music credit: "Deep Groove" by Danny McCarthy [ASCAP] and Thomas Dill [ASCAP]; Soundcast Music SESAC; Chronic Trax; Killer Tracks Production Music This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/12844 If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: https://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.htmlFollow NASA’s Goddard Space Flight Center · Facebook: https://www.facebook.com/NASA.GSFC · Twitter https://twitter.com/NASAGoddard · Flickr https://www.flickr.com/photos/gsfc/ · Instagram https://www.instagram.com/nasagoddard/ · Google+ https://plus.google.com/+NASAGoddard/posts

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