It's getting on to late March and the Moon is new, so you know what that means: Time for the Messier Marathon! OK, so you probably don't know what that means. Here's what: Over the next few nights, amateur astronomers all over the northern hemisphere will be unpacking their 'scopes and setting them up right at sunset, then as soon as the first stars pop out they'll be at their eyepieces hoping to score all 110 Messier objects in a single night. So what's a Messier obje...
