The vastness of space and the inhospitable environment make space travel challenging, and the uncertainty of exploration is not something commonly experienced in modern society. However, the early steps of exploration may lead to exciting discoveries in the future.
The possibility of aliens having observed Earth from a distant location raises questions about their presence and intentions towards humans. However, it's uncertain whether their existence and methods for observation are detectable to human perception.
Space is an inhospitable environment and the human body is not designed for it. Even if we theoretically could travel at the speed of light, it would still have detrimental health effects on the human body.
In order for our species to survive, we need to explore and potentially colonize other planets due to the instability of Earth. The exploration of space offers a new frontier for discovery and could potentially allow for affordable civilian travel in the future.