That's because, as well as neutrinos, it can detect the light given off by luminous organisms and bacteria.

这是因为，在监测中微子的同时，它还能够监测到发光生物体和细菌发出的光亮。

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Once SMBHs reach a critical size they can transform into quasars, which are extremely bright objects as small as a star but as luminous as an entire galaxy.

一旦超大质量黑洞到达了临界的大小它们就可以变成有着恒星大小却如整个星系般闪亮的类星体。

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“This season I printed micro-patterns in luminous tones on to the velvet to give it a twist, ” continues Giannini, “which means the jackets can move easily from day to evening.

“今年秋冬季，我在天鹅绒上添加了小格子亮色图案，夹克的花样不断翻新，” 贾娜妮继续说，“这意味着夹克衫无论在白天还是晚上都能随意穿。

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Television sets, smoke detectors and luminous watches can also contribute tiny amounts.

WSJ: Radiation's Effect Depends on Amount