On April evenings, look to the west to spot the bright winter constellations of Orion, Gemini, Taurus, Auriga, Canis Major and Canis Minor. They’ll be gone soon, so check them out while you can.

Venus remains rather low at dawn but slowly gains altitude as the month rolls along. Look for it in the east 45-60 minutes ...

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