Fireballs 20-30 minutes reddish orange eastern Pa northampton county two witnesses.On the night in question, my girlfriend and I were driving north on Zucksville Road, in Forks Township, Easton, PA. Around 8 oclock or so, I noticed a reddish orange light in the sky off to my right (southeast) through the trees. At first, I thought it was the lights from the radio antenna that is located on the top of the mountain, but then I saw the actual radio antenna and realized that that was not what I was seeing. The first light passed over the car in the sky as we drove, moving southeast to northwest. As I said, it was reddish orange in color, and lacked the flickering nature of airplane lights but instead looked almost like a fireball, with a densely colored center and a lighter halo or corona. It would occasionally 'pulse', growing slightly dimmer and then growing brighter again, and eventually we lost sight of it because, while driving, it was unsafe to try and keep it in sight. We were on our way to pick up a pizza at a restaurant a mile or so n! orth of where we first saw the light, and when we pulled into the parking lot, we noticed there were two more lights moving from the southwest to the northeast. Just like the first one we saw, these two lights were orange in color with a weird pulsing effect. There was no noise, no erratic movement, just a leisurely uniform pace. At one point, they moved in almost parallel lines with one another. As those two moved over the horizon, we noticed again, from the same point of origin, another light. It followed the same track as the first two. We drove down to another parking lot to get a better point of view, and witnessed two more objects following the same course: as one would approach the horizon to the southeast, one would appear to the northwest. All of the objects were of the same color and brightness, with the same pulsing effect. Again, for clarity's sake, there was no flickering or flashing or strobing that is associated with airplane lights, just a slow occasional pu! lse. At one point, an airplane did cross paths with one, and t! he diffe rence between the lights of an airplane and the objects was apparent. To be fair, there is a small local airport nearby, but none of the objects were going anywhere near the airport and they did not resemble the lights of an airplane. I took several short videos with my phone, but unfortunately the quality does little justice to the incident.