Heads up! Four planets are visible in the evening sky this month, and another two planets can be found with a little help. Dress warmly and look up this month.

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century is now taking place. Here's how to see it.

Planet parade refers to the events when planets in the solar system form a straight line and appear to be marching across the ...