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 ...

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.

Most first-time stargazers begin by looking south, as that's where northern-hemisphere observers see the ecliptic ... so if you're learning constellations or spotting planets, leave the chart ...

These signs correspond to the tropical zodiac, which segments the ecliptic—the apparent path ... It is a large constellation ...

The Earth and planets orbit the Sun in a plane, found in the sky as an imaginary line called the Ecliptic nested among the 12 constellations of the Zodiac. And so we find the planets traversing ...