RT @NASAWebb: #JWST – a 1/20th scale model and the real thing! An inside view of our cleanroom observation area at @NASAGoddard. https://t.co/PSkPpYIEhy
RT @NASAWebb: #JWST – a 1/20th scale model and the real thing! An inside view of our cleanroom observation area at @NASAGoddard. https://t.co/PSkPpYIEhy