known as an ecliptic plane, or arc across the sky if you are viewing it edge-on, according to NASA. NASA recommends observing the planet parade shortly after sunset. A telescope and knowledge of a ...

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

Seven planets will line up for a rare "planetary parade" today (Feb. 28) and you can watch it live online, beginning at 12:00 p.m. ET (1700 GMT).