bright light appear then fade out and disappear

While my niece and I were star-gazing, we watched this bright light in the sky that looked very unusual in size. It started to move and as it moved it become brighter then slowly fade then a minute later completely disappear. We were amazed at this point. Then around a minute later we saw another one but the color was red like fire then a white color and it hovered then slowly disappeared as well. My understanding was that it was definately not a airplane but something spectacular and fun to watch. Made no noise either.