"Pete Bown: As you say, the Moon doesn't have an atmosphere. But, the temperature is below -20 Celcius during daylight.

You'd think a physicist could spell "Celsius" correctly. But I'm told that spelling ability is not a good determiner of intelligence, so that's not necessarily an argument. However, knowing the correct daylight temperature of the lunar surface is a matter of intelligence, or at least of suitable research.

The Moon can not be hotter than the Earth as it is the same distance from the Sun and receives the same amount of energy.

Okay, so he apparently flunked thermodynamics. Receiving the same amount of energy is not the same as absorbing the same amount of it. And absorbing the same amount is not the same as reaching the same equilibrium temperature.

There is no atmosphere to generate a greenhouse effect to raise the temperature to the same level as Earth.

ROTFL!

Heat can stil be dissipated by radiation, that's how we get heat from the Sun.

Except that any heat from the film won't radiate any farther than the inside of the magazine. And since the magazine will absorb heat during its sporadic exposures to sunlight and conduct that heat to its inside surface via conduction and then radiate it to the film, everybody's happy.

In a vacuum a blast of gas will not cloud diffuse or billow out like an aerosol, it will form a jet.

Thus localizing its effect on the particulate.