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    protoplanetary systems tagged posts

    Scientists find evidence the Early Solar System Harbored a Gap between its Inner and Outer regions

    October 19, 2021, Categories  Astronomy/Space

    solar system graphic
    Caption:An MIT study suggests that a mysterious gap existed within the solar system’s protoplanetary disk around 4.567 billion years ago, and likely shaped the composition of the solar system’s planets. This image shows an artist’s interpretation of a protoplanetary disk.
    Credits:Credit: National Science Foundation, A. Khan

    The cosmic boundary, perhaps caused by a young Jupiter or a wind from the solar system emerging, likely shaped the composition of infant planets. In the early solar system, a “protoplanetary disk” of dust and gas rotated around the sun and eventually coalesced into the planets we know today.

    A new analysis of ancient meteorites by scientists at MIT and elsewhere suggests that a mysterious gap existed within this disk around 4...

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    Rings around Young Star suggest Planet Formation in progress

    December 12, 2016, Categories  Astronomy/Space

    An ALMA image of the star HD 163296 and its protoplanetary disk as seen in dust. New observations suggested that two planets, each about the size of Saturn, are in orbit around the star. These planets, which are not yet fully formed, revealed themselves in the dual imprint they left in both the dust and the gas portions of the star’s protoplanetary disk. (Credit: ALMA [ESO/NAOJ/NRAO]/Andrea Isella/B. Saxton [NRAO/AUI/NSF]) - See more at: http://news.rice.edu/2016/12/12/rings-around-young-star-suggest-planet-formation-in-progress/#sthash.pbHZ2cMD.dpuf

    An ALMA image of the star HD 163296 and its protoplanetary disk as seen in dust. New observations suggested that two planets, each about the size of Saturn, are in orbit around the star. These planets, which are not yet fully formed, revealed themselves in the dual imprint they left in both the dust and the gas portions of the star’s protoplanetary disk. (Credit: ALMA [ESO/NAOJ/NRAO]/Andrea Isella/B. Saxton [NRAO/AUI/NSF])

    Rice University astronomers and colleagues have for the first time mapped gases in 3 dark rings around a distant star. The rings mark spaces where planets are thought to have formed from dust and gas around the star...

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