How cold is the vacuum of space?

2 Answers

This is a complicated question. In a true vacuum there is nothing to transfer heat. Without heat transfer there can't be a temperature the way we understand it. If you have something to transfer heat it would be totally dependent on radiant heat from nearby stars.

{{ relativeTimeResolver(1586743601470) }}

Points points 39
Rating 1

The coldest the vacuum of space can get is 2.7 degrees Kelvin or -270.45 degrees Celsius. This is the temperature of the cosmic microwave background radiation.

{{ relativeTimeResolver(1548711800119) }}

Points points 81
Rating 0
to view all answers

Similar Questions
Science 1 Answer
Science 2 Answers

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world