Space

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In 1926, famed astronomer Edwin Hubble developed his morphological classification scheme for galaxies. This method divided galaxies into three basic groups – elliptical, spiral and lenticular – based on their shapes. Since then, astronomers have devoted considerable time and effort in an attempt to determine how galaxies have evolved over the course of billions of
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Planet 9 probably isn’t from another star, according to researchers from the UK and Switzerland. According to a paper on the Cornell University Library archive, while previous studies show how planet-sized objects can be captured during the early evolution and dissolution of stellar nurseries, it seems several constraints reduce the probability of interstellar planet-swapping to a
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Earlier this year, NASA announced the discovery of Trappist-1, a planetary system containing seven Earth-sized planets that could potentially bear water. Now, a international team of scientists has produced further evidence that these worlds might be habitable.   Led by Vincent Bourrier, a Swiss astronomer from the Observatoire de l’Université de Genève, these scientists have been using the Space Telescope Imaging Spectograph (STIS) on the Hubble Space Telescope to