Comet Hartley 2 has the same deuterium-to-hydrogen ratio as ocean water, lending support to the idea that Earth's water was delivered by comets. John Matson reports.

哈特利2号彗星拥有和地球海水相同的氘氢比例，有力支持了地球上的水源于彗星(的观点)。来自约翰·马特森的报道。

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John Hartley is an educator, author, researcher and commentator on the history and cultural impact of television, journalism and popular media and creative industries.

约翰·哈特利是一名教育家，作家，以及研究电视、新闻和大众媒体和创意产业的历史和文化影响的研究员和评论员。

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Oscar Bluemner, William Glackens, Marsden Hartley, Robert Henri, John Marin, Maurice Prendergast, Charles Sheeler and John Sloan were all in the Armory Show, and their contributions are now brought back together in Montclair.

WSJ: The Forgotten Americans | The New Spirit: American Art in the Amory Show, 1913 | Montclair Art Museum | By James Panero