When you look up into the sky on a moonless night, you see even more stars than you think. That’s because about 75 percent of the ‘stars’ you see are actually groups of two, three, or more stars orbiting around each other.
When you look up into the sky on a moonless night, you see even more stars than you think. That’s because about 75 percent of the ‘stars’ you see are actually groups of two, three, or more stars orbiting around each other.