Abstract
Based on the eventual destruction of the solar system and the critical
need for human continuation, as well as humans cannot travel to the
nearest habitable exoplanet within a lifetime, this article suggests
sending synthetic biology- and AI-created plant-like astronauts to the
closest habitable exoplanet. These astronauts have green skin, blue
blood, and the ability to perform photosynthesis. They can withstand
cosmic radiation and extremely low temperatures in space, while
generating energy through photosynthesis. This interdisciplinary
approach may offer a solution for the survival challenges faced by
humanity during its eternal interstellar exploration. As long as these
plant-like astronauts possess human consciousness, it is irrelevant
whether they are hybrids of carbon- and silicon-based life forms. They
will continue their lineage of humanity on exoplanets. Humanity has two
survival options. The first option is the Martian migration program led
by Elon Reeve Musk, which is both visible and realistic. It could
provide an immediate option for human continuation and expansion,
although it may not help us escape the future burning of the Sun during
its red giant. The second option involves directly sending plant-like
astronauts beyond the solar system. This kind of audacious adventure may
be worth it: escaping its destruction entirely and preserving our
species. Instead of struggling on Mars for thousands of years to reach
today’s technological level on Earth and then initiate an “escape from
Mars”, it may be more feasible to begin the “escape from Earth” to
Teegarden’s Star b now. Should we consider both options simultaneously,
much like how humans use their two legs to walk? We must strive with all
our might; otherwise, humanity will forever be trapped within the solar
system, awaiting the inevitable helium flash to come…