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Reference Terms
from Wikipedia, the free encyclopedia


Sirius is the brightest star in the nighttime sky.

Sirius can be seen from every inhabited region of the Earth's surface.

There are a few unsolved mysteries regarding Sirius.

Note:   The above text is excerpted from the Wikipedia article "Sirius", which has been released under the GNU Free Documentation License.
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Science News
February 26, 2017

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updated 12:56 pm ET