Spent several years in Arizona, lots of it on foot in the desert at night (like 50 to 60 hours a week).
Night in the desert is generally pretty light. No clouds generally (no moisture in the air to make clouds) and very little vegetation to block the sky. (There's a full canopy here in Michigan blocking the starlight or moonlight.) You certainly could move at night. The smugglers certainly do. BUT you don't know where you are and don't know where the resources are (shelter etc). The risks of twisting an ankle or more likely getting some cactus spine through your boot are pretty high at night also.
Best to move early in the morning and late in the day IMO. Rest in the best shade you can find in the heat of the day.
The good news is that it's easier to be spotted in the desert so you may not have to cover much ground.
Night in the desert is generally pretty light. No clouds generally (no moisture in the air to make clouds) and very little vegetation to block the sky. (There's a full canopy here in Michigan blocking the starlight or moonlight.) You certainly could move at night. The smugglers certainly do. BUT you don't know where you are and don't know where the resources are (shelter etc). The risks of twisting an ankle or more likely getting some cactus spine through your boot are pretty high at night also.
Best to move early in the morning and late in the day IMO. Rest in the best shade you can find in the heat of the day.
The good news is that it's easier to be spotted in the desert so you may not have to cover much ground.