NASAのインスタグラム(nasa) - 12月1日 07時09分

Is #Comet #ISON back from the dead? Continuing a history of surprising behavior, material from ISON appeared on the other side of the sun on the evening on Nov. 28, 2013, despite not having been seen in observations during its closest approach to the sun. The question remains whether it is merely debris from the comet, or if some portion of the comet's nucleus survived, but late-night analysis from scientists with NASA's Comet ISON Observing Campaign suggest that there is at least a small nucleus intact.
This image is a "timelapse" series of images of comet ISON as viewed by ESA/NASA's Solar and Heliospheric Observatory, or SOHO. This image is a composite, with the sun imaged by NASA's Solar Dynamics Observatory in the center, and SOHO's two coronagraphs showing the solar atmosphere, the corona. The most recent image in this is from 5:30 p.m. EST on Nov. 29, 2013.

Image Credit:ESA&NASA/SOHO/SDO
#nasa #space #cometison #stars #astronomy #universe #solarsystem

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