Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

This arc is known as the ecliptic — the plane on which the planets orbit the sun. From our viewpoint on Earth, they don’t ...

The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...

From planets and constellations, to eclipses and the Aurora Borealis, here's what to look for in the sky this spring ...

January started out with a meteor shower and now has a planetary alignment in store. Here's what you'll be able to see and when to catch the event.