Betelgeuse needs no introduction. Besides having its name borrowed by the ghost with the most, this 10-million-year-old red ...

The stellar companion may help explain why the brightness of Betelgeuse, the red supergiant, is open to so much variation.

What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?

Stars are more colorful than you think! Patience will reveal them; head outside tonight to see summer’s multi-hued stars.

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