Activity for Gstestso‭

Type	On...	Excerpt	Status	Date
Question	—	Is a star orbiting around planets(not a single planet) possible? I'm trying to construct a habitable world which has a sun orbiting around it. I know a star can't orbit around a planet, because a star is much more massive than a single planet, which has been known here: Can a habitable planet have mini-suns (i.e. solar satellites or glowing moons)? But how about... (more)	—	over 7 years ago
Question	—	Can a galactic center be my sun? Suppose there is a rogue planet. I was imaging what could be its energy source for life, and I remembered that photos of the center of a Galaxy look very bright. So my question is, can a galactic center be the sun of a rogue planet? (more)	—	over 7 years ago
Question	—	Can a star change color periodically by high orbital speed? I'm imagining a situation that we can see a star change color periodically: A star and Earth orbit around a black hole The star is very near to the black hole so that it has high orbital speed, while the Earth orbits the black hole at far away As the star has a high orbital speed, when the tangenti... (more)	—	over 7 years ago
Question	—	Is a moon floating on the atmosphere of a gas giant possible? I have an idea: can a moon float on the atmosphere of a gas giant, just like a piece of wood floats on the water? It is based on the following situation: The density of the atmosphere increases when getting deeper to the core. The moon spins inwards to the planet slowly because of some damping suc... (more)	—	over 7 years ago
Question	—	What could cause a difference in coloration between the hemispheres of a gas giant? Would it be possible for a gas giant to have differently colored hemispheres? E.g. the northern hemisphere appearing blue when looked at, while the southern hemisphere would appear brown? (or any other combination of coloration such as red & green, etc.) What processes would cause such a world to b... (more)	—	over 7 years ago
Question	—	Living on a ring of rock on the equator of white dwarf, is it possible? I'm imagining if we can live on a very special white dwarf which has very special characteristics: It has cooled down to a very low temperature Its rotational speed on the equator can almost cancel out the gravity (ie: the gravity is almost same as on Earth) Accretion occurs so that rocks accumulat... (more)	—	almost 8 years ago
Question	—	Is a binary system of two planets with a common ring possible? I want to have two planets orbiting each other, and there is a ring around both of them, is this possible? I know rings are formed inside the Roche limit, so if the ring lies outside the planets, the material of the planets should be far harder than that of the ring, is it correct? And a more impor... (more)	—	about 8 years ago
Question	—	Is "quasi planet" habitable for life? I was imaging a system which has a black hole, a star and Earth like planet. The star and planet orbits around the black hole, but the planet has same orbital period as the star, which is a "quasi planet" of the star (see:this, at this case, the Earth is replaced by the star and the quasi satellite i... (more)	—	over 8 years ago
Question	—	How different if an Earth like planet has 90 degree orbital inclination (not rotational axis)? Consider an Earth like planet is orbiting around a Sun like star, it is almost identical to our Solar system, except the orbital inclination of the planet is 90 degree to the equator of the star (note: it means the planet have chance to face to the pole of the star, not the case that the planet has 9... (more)	—	over 8 years ago
Question	—	Is a volcano civilization possible? I would like to create a civilisation that develops near active volcanos. In ancient times, they would make good use of volcanoes like: Use lava as heat resource. Use lava as material to make bricks, tables, papers, or even use them to fill the ocean to create land or build houses, bridges. Extract... (more)	—	about 9 years ago