A conjunction is an astronomical event in which at least two planets – or, in this case, other celestial bodies – appear to our vantage from Earth to be close together in the sky. The trio of ...

Skygazers around the world were treated to a once in a lifetime experience on Monday, when the great conjunction of Jupiter and Saturn formed what has been dubbed a Christmas Star. Photos from the ...

This Thursday evening, look to the western skies as Jupiter and Venus—the two brightest planets to the unaided eye—stage a close encounter over the Northern Hemisphere. Though the two planets will ...