Angels are satan's dream catchers.
You will find ALL the answers in the Bible.
Honestly, angels are real. Many times when we are in trouble it is an angel sent by God who saves us at that moment. If we need assistance with anything angels are there to help. They are real. I have seen them.
In Quran God has mentioned them!! And for that they are as such physical evidence one can't acquire one however i never experienced such stuff
Angels are around us and can take on human forms shapes and leave signs such as feathers just ask they will help when called upon
The Bible - especially the Old Testament - is some of the best science fiction ever written.