A strong cosmic source of x-rays, E0102 was imaged by the Chandra X-ray Observatory shortly after its launch in 1999.

E0102是个明亮的宇宙X射线源，所以钱卓拉在1999年发射升空后不久，就曾观测过它。

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Supernovas in the Milky Way are the likeliest source for most of the cosmic rays reaching Earth.

银河系中的超新星最有可能是大多数宇宙射线到达地球的来源。

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Cosmic strings would also create incredible gravitational waves, stronger than any other known source.

宇宙弦还会产生无与伦比的至强引力波。

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However, when the moon is between the telescope and the source of the cosmic rays, Dr Colin and his colleagues reckon that it will be possible to separate the two by looking at the edges of the shadows.

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Interestingly, an April 18 paper in the journal Nature reported that upper limits for neutrinos measured from IceCube are low enough that gamma-ray bursts are unlikely to be the sole source of ultra-high energy cosmic rays.

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Given that we absorb some 40 millirems from our food (bananas being a large source funnily enough) each year, living in Denver gives you 50 millirems from cosmic rays, this seems a sensible enough low limit.

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