Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...

Mercury is visible just below Venus for the first week and a half of March. March is the best time to view Mercury, a planet ...

Astronomers call this “apparent retrograde motion” because it is an optical illusion. Mercury completes its orbit around the ...

Mercury, the first planet from the sun, is about to be really easy to spot for a short snippet of time in the night sky next ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

I pick out North America’s celestial highlights for the weekend (which also applies to northern hemisphere mid-northern ...

This Friday, all seven planets will be in the night sky for a brief period. Join the cosmic spectacle and learn where to look ...