Space is very cold. It’s -270something C. The temperature on Earth is much higher. The rays that make it through to our atmosphere bounce off the ground, warming it up from the bottom up. That’s why you need a jacket when you climb up a mountain because it’s getting colder the higher you go. Imagine a mountain higher than anything we have. Eventually, you’ll get to -50 C.
Space is hot, but space is empty. Of the very small number of particles you’ll collide with in deep space, they’re very hot on average, but so few and far between that you’ll lose heat faster to radiative cooling than you’ll gain from those particles, provided you’re a good distance from a star. Radiative cooling is pretty slow, though. And even though you’ll kind of freeze if you jump out of a space ship mid-flight, it’s not because of the temperature. It’s because you’re made of water, mostly. The sudden depressurization will let you the surface water boil off and drop your temperature very quickly.
-273.15C is absolute zero. Nothing in space is absolute zero. Most material is far above absolute zero. However, with so few particles to interact with, bodies will eventually radiate heat until absolute zero. It’s a long way away though, and will happen about as fast as most other things flying through space, including planets and stars. That’ll be known as the heat death of the universe. Won’t be anything living to see it.
Space is very cold. It’s -270something C. The temperature on Earth is much higher. The rays that make it through to our atmosphere bounce off the ground, warming it up from the bottom up. That’s why you need a jacket when you climb up a mountain because it’s getting colder the higher you go. Imagine a mountain higher than anything we have. Eventually, you’ll get to -50 C.
Space is hot, but space is empty. Of the very small number of particles you’ll collide with in deep space, they’re very hot on average, but so few and far between that you’ll lose heat faster to radiative cooling than you’ll gain from those particles, provided you’re a good distance from a star. Radiative cooling is pretty slow, though. And even though you’ll kind of freeze if you jump out of a space ship mid-flight, it’s not because of the temperature. It’s because you’re made of water, mostly. The sudden depressurization will let you the surface water boil off and drop your temperature very quickly.
-273.15C is absolute zero. Nothing in space is absolute zero. Most material is far above absolute zero. However, with so few particles to interact with, bodies will eventually radiate heat until absolute zero. It’s a long way away though, and will happen about as fast as most other things flying through space, including planets and stars. That’ll be known as the heat death of the universe. Won’t be anything living to see it.