Spica is not a single star, but a binary system, meaning two stars orbit closely around one another, every four days. The stars lie approximately 11 million miles (less than 18 million kilometers ...

A Twin-Star Wonder Spica is not just one star but a twin-star system, where two stars orbit each other in a close binary arrangement. These stars are so close—separated by only a few million ...

For many of them, this means exploding in a very dramatic fashion. There are several ways that a star can explode including ...