Astronomers using the Space Telescope have conducted the first spectroscopic survey of Earth-sized planets in the -1 system’s zone. Hubble reveals that at least the inner five planets do not seem to contain puffy, hydrogen-rich similar to gaseous planets such as Neptune. This means the 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

Read the joint Hubble and Spitzer findings on https://www.nasa.gov/feature/goddard/2018/hubble-probes-atmospheres-of-exoplanets-in-trappist-1-habitable-zone

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

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