UFO Sighting in Boise, Idaho on June 21st 2015 – Green Fireball Falling From Sky With Orange Colored Tail Disintegrated In Mid Air

Standing On A Porch Outside, Talking with a visitor, We Both noticed a long green streak flying/falling through the sky, Was a long trail of green fire with blue/orange at the tail end. Fireball looked like it disintegrated in mid air above tree line, could not see anything hit the ground. We think the object was a comet of some sort, I have never seen a comet fall but I feel like it was strange being green fire and being as large as the streak was.