Earth is not alone, and a stunning new animation created using NASA data beautifully illustrates that point. There may be trillions of other planets in our galaxy, the Milky Way (which itself is ...

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).

What if the moon and planets were closer to Earth? That's what Nick Holmes decided to find out. Holmes, AKA "yeti dynamics" on YouTube, animated these 3D models. He is an amateur astronomer and is ...