GENERATING POWER ON EARTH FROM THE COLDNESS OF DEEP SPACE

Summary from the TLDR newsletter

The coldness of space is a largely untapped thermodynamic resource. Advances in technology could soon result in solar panels that work at night as well as day. Scientists have already demonstrated that it is possible to chill water to cool buildings by as much as 5 degrees Celsius during the day directly using power generated by the cold universe. This article looks at some current ideas and prototypes in the field.