>>12464457Like I said it could be bigger too, I certainly hope you didn't mean you could just "hover" a mirror right next to the planet and make it smaller that way
>>12464462They don't
>>12464475Yes and countless planets, moons, rocks and satellites exist in space right now cooling only by radiating heat and none of those are melting.
Space isn't magic, don't pretend to be retarded
It's pretty trivial to do the black body calculations on how high the maximum temperature would be for a piece of aluminum foil in earth or venus orbits. For instance sunny day down on the ground on earth is 1100W/m2 while in earth orbit (like on surface of the moon) it's 1300W/m2, reflectivity of aluminum foil is about 80% but you can use 50% if you want, surface 1 m2 for easy calculations and radiative surface of 2m2. Crunch the numbers and see if goes to the melting point, don't be a mutt.
>>12464496They have been experimenting with this recently, you can use the pressure to station keep either in the orbit or in the lagrange point. You can do it passively by placing the object on an orbit that wouldn't work without the additional push but will work with it. Pretty sure one of these would be lagrange point but slightly closer to the sun for instance. If you have control mechanisms then you can even use it to gain energy quite easily bu altering the direction of the forces at specific points of orbit.