Hey Friends,
Its amazing to watch all these youtube documentaries and learn as much as I can about exoplanets. Exoplanets like Kepler542 that astronomers believe it is Earth2.0. I did not know that we had the ESI (Earth Similarity Index) scale to grade each exoplanet that has been discovered. I also thought it was amazing that the color of the light might have a huge impact in determining if humans can live on an exoplanet.
As you will see in the documetary ( if you actually watch the whole thing) you will be amazed to learn that the Earth's light color is unique in the whole solar system. I totally scraped this image from the documentary so that you can see that Mars has red light. Can you imagine living in a planet with red light all day? Can you imagine a day lasting 90 earth hours?
A little side note. On earth we use the Gregorian calendar system but other planets will probably have their own calendar system and one day we will have to perform conversions between Earth time and Mars time just to know when to place an intergalactic video conference call our distant cousins living on Mars.
Upvote if you think humans will live on Mars.
Thanks for looking.