With climate change, overdue asteroid strikes, epidemics and population growth, our own planet is increasingly precarious.
Even though some of our necessary resources are renewable, we have somehow managed to exceed regeneration of these resources and this is leading to the annihilation of even the renewable resources.
Even if we manage to sustainably use these renewable resources, the same may not apply to the non-renewable resources.
We will not survive another 1,000 years without escaping beyond our fragile planet. Remaining on Earth any longer places humanity at great risk of encountering another mass extinction.
We must go into space for the future of humanity.
Expanding our civilization to another planet/moon or to orbital habitat is going to open new doors for the advancement of mankind.
Despite advances in rocket science, the reality is that our species remains trapped on Earth. Our technology has reached the edge of the Solar System, but no human has yet set foot on another planet.
Even if space colonization can be a solution for the survival of humankind, we are still far away from making it possible.
If a rocket is to escape from the Earth‘s surface and reach space, it needs to achieve an escape velocity of 11.186 km/s (40,270 km/h). Similarly, the escape velocity needed to get away from the location of the Earth around the sun is about 42 km/s (151,200 km/h).
An extraterrestrial civilization could use propulsion methods, such as nuclear engines or lightsails which are not constrained by the same limitations as chemical propulsion and can reach speeds as high as a tenth of the speed of light.
Our civilization is currently developing these alternative propulsion technologies but these efforts are still at their infancy.
In the meantime, we can rest easy in the knowledge that we live on a habitable planet around a yellow dwarf star, which affords us not only life, but the ability to get out into space and explore.
Humans have always gazed up at the stars. For thousands of years, we thought they were as close as the Sun and the Moon. But now, we know just how vast the universe is. The closest star is about 25 trillion miles away.
The first people who journey to the stars will be venturing into the absolute unknown, and, perhaps for the first time, traveling faster than light. Around the World scientists are testing new technologies and probing deep into the heart of physics to find a way for us to escape our island Earth.
Our hopes to explore this final frontier will never be dimmed, and one day we will reach it.
Because what man can imagine, man can do.