There has been increased interest in unidentified flying objects (UFOs) ever since the Pentagon's 2021 report revealed what appears to be anomalous objects in US airspace, dubbed unidentified aerial phenomena (UAP).
Fast forward to 2023, and Nasa has already formed a panel to investigate the reports and appointed a director for UAP research.
A newly founded Pentagon desk has also released footage of mysterious metallic orbs. What is perhaps most remarkable is that David Grusch, a former intelligence officer, testified under oath before the US Congress, stating that he had interviewed around 40 people involved in secret programmes dealing with crashed UFOs.
I am interested in searching the sky for alien, physical objects which may one day tell us whether we are alone in the galaxy. Consider this: within our own Milky Way galaxy, there are 40 billion Earth-sized, potentially habitable planets.
Human ingenuity has enabled us to engineer and launch probes like Voyager and Pioneer, capable of reaching the closest stars. We've initiated efforts such as the Breakthrough Starshot programme which aims to reach nearby star Alpha Centauri in just a few decades by exploring innovative propulsion methods.
Sending a probe may be more economical than sending out radio or laser communication if there is no need to hurry.
If humans can send a probe to another star, why couldn't another civilisation send a probe to our Solar System? Such a probe could make it to the main asteroid belt and lurk on an asteroid.
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