Elements of Webb: Helium Episode 09
January 6th, 2022
Don't lose your chill, but helium is the coolest element. (It's got the lowest boiling point!) Apply pressure, and it gets even cooler.
Find out how pressurized helium helps keep the cryocooler of NASA's James Webb Space Telescope's MIRI instrument only about 7 Kelvin (-448 degrees F, or -266 degrees C) in the latest episode of Elements of Webb.
Provided by NASA's Goddard Space Flight Center