The planet Mercury is visible after sunset in the west, forming a line with the heads of Gemini the Twins: the stars Castor ...

Mare Crisium, or the 'Sea of Crises', can be spotted on the night of May 30 as an oval-shaped dark patch on the moon's northeastern limb, close to the terminator — the line that separates day from ...

Pollux and Castor are two fairly bright stars not far apart on the face of the night sky, prominent on April evenings. These two are considered the “heads” in the constellation, Gemini the Twins.

Pollux and Castor are two fairly bright stars not far apart on the face of the night sky, prominent on April evenings. These two are considered the “heads” in the constellation, Gemini the Twins.

A meteor (left) from the Geminids meteor shower enters the Earth’s atmosphere past the stars Castor and Pollux (two bright stars, right) on Dec. 12, 2009, above Southold in Suffolk County, New York.

Pollux is the brightest star in the constellation Gemini and one of the brightest stars in Earth's sky. It is more massive than the sun and 43 times brighter than our star.

Around dusk tonight, Castor and Pollux will form a nearly straight line with Venus. ... our rocky satellite will travel within 90 percent of its closest approach to Earth during the new moon phase.

ECLIPSE OF THE MOON ON 27TH Mars, Venus, Castor and Pollux, Orion and Vega to be Seen -- Occultations and Conjunctions. Share full article. Nov. 27, 1898.

It’s interesting to note that Pollux is 34 light-years from the Earth, and Castor is 51 light-years away. That means the two “heads” of Gemini the Twins are 17 light-years apart.

It’s interesting to note that Pollux is 34 light-years from the Earth, and Castor is 51 light-years away. That means the two “heads” of Gemini the Twins are 17 light-years apart.