This annual meteor shower is created when Earth passes through trails of comet debris left in space long ago by . The "shooting stars" develop when bits typically no larger than a pea , and mostly sand-grain-sized, vaporize in Earth's upper atmosphere.
"Flakes of comet dust hitting the atmosphere should give us dozens of meteors per hour," said Bill Cooke of NASA's Meteoroid Environment Office.
People in cities and suburbs will see far fewer meteors, because all but the brightest of them will be overpowered by light pollution. The best view will be from rural areas (the moon will not be a factor, so dark skies will make for ideal viewing).
When and how to watch
The best time to watch will be between 1 a.m. and dawn local time Wednesday morning, regardless of your location. That's when the patch of Earth you are standing on is barreling headlong into space on Earth's orbital track, and meteors get scooped up like bugs on a windshield.
Peak activity, when Earth wades into the densest part of the debris, is expected around 6 a.m. ET (3 a.m. PT).