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    New Space Discovery sheds light on how Planets Form

    July 30, 2019, Categories  Astronomy/Space

    Data on the brightness of a young star led to the discovery of exoplanet DS Tuc Ab. Red arrows mark “transits” where the planet crossed between Earth and the planet’s host star. The large, smooth variations are caused by the star, a result of its youth. Figure courtesy of: Elisabeth Newton
    Data on the brightness of a young star led to the discovery of exoplanet DS Tuc Ab. Red arrows mark “transits” where the planet crossed between Earth and the planet’s host star. The large, smooth variations are caused by the star, a result of its youth. Figure courtesy of Elisabeth Newton.

    A young planet and a bright star offer glimpses into the past and future. Researchers at Dartmouth College have discovered a planet orbiting one of the brightest young stars known, according to a study published in the journal The Astrophysical Journal Letters. Aged at approximately 45 million years old, the star and its planet could provide valuable information on how planetary bodies form.

    Known as an exoplanet because it is outside of the solar system, the planet was found as part of NA...

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