Over Australia:
People have been seeing odd things and strange shapes in the sky since ancient times.
https://www.theguardian.com/science/2010/apr/30/stephen-hawking-right-aliens
If this world is like a farm and a zoo to something else, humans would find that unsettling. If this world is part of a cosmic laboratory, people might be even more uncomfortable with that notion.
Then there are many people might regard them as demonic entities or the Jinn. The global power-structure is still very reluctant to reveal to most people that this world is part of some process with off-world or inter-dimensional observers and manipulators.