Activity for apcthx‭

Type	On...	Excerpt	Status	Date
Question	—	Is my Solar System scientifcally possible? I'm heavily ignorant when it comes to mathematics and just science in general, but I have thought of four habitable planets, all of them revolving around a K-type sun. They're all colonized by humans, and i'm trying to come up with the geography and size of each planet. I would love it if anyone coul... (more)	—	almost 7 years ago