Multimedia Release 6-Jan-2022 Elements of Webb: Helium Episode 09 Business Announcement NASA/Goddard Space Flight Center image: Elements of Webb Ep. 9: Why Does Webb Use Helium? 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 Webb’s MIRI instrument only about 7 Kelvin (-448 degrees F, or -266 degrees C) in the latest episode of Elements of Webb You Tube: https://youtu.be/zPXkjfolg5M Twitter: https://twitter.com/NASAWebb/status/1478807517899677697 Facebook: https://www.facebook.com/NASAWebb/videos/929222924397480/ Downloadable: https://svs.gsfc.nasa.gov/14011 view more Credit: NASAS Goddard Space Flight Center Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.