Elektra and its three moons. (ESO/Berdeu et al., Yang et al.) ====================================================================================== An asteroid discovered in the 19th century has just been identified as the most crowded we've ever found. It's called 130 Elektra, or just Elektra for short, and astronomers have just discovered that it has not one, nor two, but three smaller satellite companions, or moons. That not only makes it the most numerous asteroid system known to date, but demonstrates how we might find other faint, hard-to-see asteroid moons in the future. "Elektra is the first quadruple system ever detected," wrote a team of astronomers led by...