Astronomers call this “apparent retrograde motion” because it is an optical illusion. Mercury completes its orbit around ...
Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...
I pick out North America’s celestial highlights for the weekend (which also applies to northern hemisphere mid-northern ...
A rare grouping of 10 celestial bodies is captured in a stunning new photo taken during last weekend’s great planetary parade ...
Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...
California stargazers can spot an unusual sight in the night sky in March: a total lunar eclipse with a blood-red moon. In ...