Dragonfly probe will push the boundaries of engineering and science as it explores Titan

 https://arstechnica.com/space/2024/04/nasa-officially-greenlights-3-35-billion-mission-to-saturns-moon-titan/

What if various ET probes were sent to the earth a very long time ago?

https://www.space.com/nasa-dragonfly-mission-launch-2028-saturn-moon-titan

Of course that would imply that Sentient_intelligence exists in this ancient universe.

https://www.isas.jaxa.jp/en/missions/spacecraft/developing/dragonfly.html

Arthur_C._Clarke and many others, were intrigued with the concept of non-organic-intelligence.

https://www.jhuapl.edu/news/news-releases/240417-nasa-confirms-apl-led-dragonfly-mission-to-saturn-moon-titan

ACC wrote The_Sentinel_(short_story) in 1948. Parts of it and various other ACC stories would be adapted into a big project during the mid and late 1960s.

https://www.skyatnightmagazine.com/news/nasa-dragonfly-to-explore-saturn-moon-titan-for-signs-of-life-on-moon-titan

What if some ancient beacons and probes were found on earth, the moon and even Mars? 

https://www.forbes.com/sites/jamiecartereurope/2024/04/19/dragonfly-nasa-just-confirmed-the-most-exciting-space-mission-of-your-lifetime/?sh=5d40c353b5ba

Over the decades, various tech from earth has been sent out into the solar system and beyond.

https://www.theverge.com/2019/7/31/20746926/sentient-national-reconnaissance-office-spy-satellites-artificial-intelligence-ai

If some very ancient high-tech civilization sent some of their tech to this solar system, how would we even know?

https://en.wikipedia.org/wiki/Encounter_in_the_Dawn (1953)

https://thedigitallabyrinth.blogspot.com/search?q=Dragonfly+space+probe