Since there is no movement of gaseous molecules, I assume you cannot measure temperature within a vacuum which leads me to wonder...what would it feel like on your skin if you briefly stuck and appendage (say your hand) into a confined vacuum environment?
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Even in a vacuum, you can have particles. It is particles with mass that you cannot have. The particles you CAN have are called photons - particles of energy. You can also think of them as waves of radiation.
If you had a container that was a total vacuum, say in your room, there would be photons of energy coming off of the walls of the container, traveling across the vacuum. If you put a temperature probe into the vacuum, it would register an average temperature based on the amount of energy traveling through the vacuum.
When scientists speak of the temperature of the universe, also called the background radiation - they are speaking of exactly this way of considering the temperature of empty space.
If you had a container that was a total vacuum, say in your room, there would be photons of energy coming off of the walls of the container, traveling across the vacuum. If you put a temperature probe into the vacuum, it would register an average temperature based on the amount of energy traveling through the vacuum.
When scientists speak of the temperature of the universe, also called the background radiation - they are speaking of exactly this way of considering the temperature of empty space.
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I'm guessing there is temperature. For a few reasons. Space is a vacuum I've been told and very very cold. So there's a cold vacuum. However, I had a science lesson years ago demonstrating a vacuum. a feather was put inside it and the container was thick glass. The feather looked normal (rather than frozen) and the glass didn't shatter (which I think it would at such cold temperatures). Therefore, I would say there's temperature in a vacuum.