Glowing orange orbs over Sonoran Desert (8/24, 8/25) and Maricopa city/South Mountain (8/31)

On 8/24 at 8:45pm facing South towards Sonoran Desert National Monument, my husband and I saw 3 "fireball" looking orbs hovering over a distant hillside towards the Sonoran Desert National Monument. They suspended/hovered in the air for about 5 minutes before "extinguishing" but not dropping, and moving to another location east (maybe a couple of miles?) and reappeared. These eventually "went out" and we did not see them again that night.
On 8/25 at 9:45pm, again facing South towards the Sonoran Desert National Monument, 3 lights appeared while my husband and I were out stargazing, hoping to see the lights again that we'd seen the night prior. They maintained their location in the sky, just like the night before, and were the same glowing amber lights/orbs. They again disappeared, and reappeared SSW towards Yuma, this time seemingly further away. This lasted roughly 10-15 minutes before we did not see anything again. Then, last night on 8/31 at 7:20pm, I was in my backyard facing North (completely opposite direction of past 2 sightings) towards South Mountain/Ak Chin Reservation, when I saw 3 glowing amber lights, just above the horizon line. I have included photos and videos of what I witnessed last night. I was terrified upon first sighting, as it looked almost as if they were coming towards me? The lights seemed to grow brighter and brighter, and I had a weird feeling. This time my husband was not home, so I ran inside and called him, and viewed from my bedroom window that faces north. I could still see the lights and they were hovering over the horizon line facing North, 3 lights in a horizontal row. About 7:34pm, the lights changed into a triangle formation, and then over about 2 minutes, they changed to a diagonal formation. Eventually, one dimmed (did not extinguish because I could still see it) and moved west of the original location. The other two maintained their brightness. After about 20 minutes they dimmed. At 8:20pm, all 3 bright lights were visible again in the same area, and again moved from a triangle formation, to a diagonal, as seen in the still photos from the 3 minute video I took.