For the nighthawks, Comet Lulin will be passing Earth during the next few nights and will be visible to the naked eye.
The comet was only discovered a couple of years ago and this time it will be passing a mere 38 million miles from our little planet, the closest it has ever been.
Lulin is about the size of Jupiter, glows green and should be visible to the naked eye during the next few nights, from about 02:00. Due south near Saturn is where you need to be looking.