Your car radiator is actually using convection to convect heat into the air.

The spacecraft radiators use radiation to dump heat by emitting infrared photons. Photons do not require a medium. This type of radiator works by maximizing the area of hot surface exposed to empty space (which has an effective temperature of 3 K). They have to be pointed into a dark area and away from the sun. There’s no advantage to fins, because you want to maximize area perpendicular to the dark sky.

Both devices are called radiators, but they are different kinds of devices.

Solar sail effect is going to be dwarfed by regular atmospheric drag in low earth orbit. At perfect right angles the radiation pressure on the panels is 4.5 micro-Pascals. Meanwhile, in low orbit there’s enough residual atmosphere to generate a dynamic pressure (for drag) of 5 milli-Pascals, give or take (and strongly depending on the space weather).

So atmospheric drag is around 1000 times more than photon pressure. And the drag is big enough to be noticeable over weeks and months, requiring regular boosts to stay in orbit.

You could put em on the moon with a heatpump into the ground.

The interior of the moon is not super cold. You could still run a heat pump, but I don’t know what the conductivity is like.

This ruling confirms that there is no other legal path to obtain that data which isn’t a warrant.

The supreme court ruling doesn’t go this far.

The ruling says that a search occurred when LEOs obtained the geofenced location data from a service provider. The case was sent back down to the circuit court to determine whether or not a warrant was required.

There are various exceptions that allow the government to conduct warrantless searches under the 4th amendment. For example:

• the “frisk” in a Terry stop to search for weapons.
• search with consent
• search incident to arrest
• hot pursuit and exigent circumstance allow police to follow suspects into a place, but not usually to then go looking for stuff.
• searches within the (generous) border zone for border enforcement
• searches at airport security and similar contexts
• public roadway DUI checkpoints and other road safety checkpoints that stop all drivers.

It’s not obvious that any of those apply to this case, but maybe they do. The circuit court will decide.