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    TRAPPIST-1f tagged posts

    Deep Oceans Dissolve the Rocky Shell of Water-Ice Planets

    May 28, 2021, Categories  Astronomy/Space

    Cut-away diagram of a water-rich sub-Neptune exo-planet highlighting, in orange color, the interaction region between a deep H2O layer and the underlying rocky mantle
    CREDIT
    S. Speziale/ GFZ

    Laboratory experiments allow insights into the processes under the extreme pressure and temperature conditions of distant worlds. What is happening deep beneath the surface of ice planets? Is there liquid water, and if so, how does it interact with the planetary rocky “seafloor”? New experiments show that on water-ice planets between the size of our Earth and up to six times this size, water selectively leaches magnesium from typical rock minerals...

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    Composition of Earth-size planets in TRAPPIST-1 system

    June 9, 2017, Categories  Astronomy/Space

    1. The lighter green indicates optimistic regions of the habitable zone and the darker green denotes more conservative limits. Credit: University of Oklahoma 2. This artist’s impression displays TRAPPIST-1 and its planets reflected in a surface. Image credit: NASA / R. Hurt / T. Pyle. 3. The TRAPPIST-1 system contains a total of seven Earth-size planets. Three of them — TRAPPIST-1e, f and g — dwell in their star’s so-called ‘habitable zone.’ Image credit: NASA

    1. The lighter green indicates optimistic regions of the habitable zone and the darker green denotes more conservative limits.
    Credit: University of Oklahoma
    2. This artist’s impression displays TRAPPIST-1 and its planets reflected in a surface. Image credit: NASA / R. Hurt / T. Pyle.
    3. The TRAPPIST-1 system contains a total of seven Earth-size planets. Three of them — TRAPPIST-1e, f and g — dwell in their star’s so-called ‘habitable zone.’ Image credit: NASA

    A University of Oklahoma post-doctoral astrophysics researcher, Billy Quarles, has identified the possible compositions of the 7 planets in the TRAPPIST-1 system...

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