Earth-like planets are far, far away. For example the next solar-system Alpha-Centauri is around 4,5 lightyears from here.

For example: The gravity acceleration on Earth is ca. 9.8 m/s², on Moon only ca. 1,6 m/s², and on Mars: ca. 3,7 m/s². This differences in relation to Earth have impacts on the development of life. Then there are the questions about atmosphere, oxygen, water, warmth, cold, etc. Why striving to space, when we are not able to tackle the climate crisis and to live in peace around our globe? For further information and facts, here are some links that fit more or less to the topic, e.g.:

- Why Settling Mars Is a Terrible Idea - Scientific American

- https://phys.org/news/2023-10-comprehensive-blueprint-settlement-mars.html

- https://www.theguardian.com/books/2023/aug/21/the-big-idea-should-we-colonise-other-planets

- https://nationalinterest.org/blog/buzz/humanity-would-be-better-saving-earth-rather-colonizing-mars-29712

- Colonies of the Future: Settling on Mars - Othniel (othnielcreator.com)

- https://en.wikipedia.org/wiki/Colonization_of_Mars

last visit: 07. November 2023.