How Can Space Be So Cold If the Sun Is So Hot?

The Sun burns at 15 million degrees. The space between you and it is colder than liquid nitrogen. How? Radiation heats what it touches. Not the vacuum it passes through. The Sun's light crosses 150 million kilometers in 8 minutes without warming that space by a single degree. The void stays at 2.7 Kelvin - the temperature left over from the Big Bang itself. That cold isn't the absence of the Sun's warmth. It's the condition that makes the Sun's warmth useful. Without a cold sink there is no thermodynamic engine. Without a thermodynamic engine there is no weather, no ocean currents, no biology, no you. Here at Silent Abyss, we make documentaries to be experienced, not just watched. Just let it play. space, why is space cold, sun temperature, absolute zero, space documentary, silent abyss, space facts, thermodynamics, heat in space, astronomy, cosmology, sleep documentary, relaxing space