25 November 2015
A quick brake from The Voyage to Mars to show what’s going on right now regarding the construction of the James Web Space Telescope (JWST) which is scheduled to be launched in 2018 as a replacement for the Hubble Space Telescope . . .
The photo, above, shows engineers and technicians working to assemble the James Web Space Telescope (JWST) in a clean room at the NASA Goddard Space Flight Center, Greenbelt, Maryland.
The hexagonal mirrors are being put in place on the framework of the JWST.
Shown, below: Preparation to attach the first of 18 hexagonal mirrors, each 4.2 feet (1.2 meters) across and weighing 88 pounds (40 kg).
Each mirror must be carefully guided into place, as shown below . . .
The mirrors are made of Beryllium which is being used because it is lightweight and has the ability to retain its shape in space temperatures which will vary from -406 to -343 degrees, F.
Hope you have enjoyed this little pause in The Voyage to Mars.
Have a wonderful holiday(s) season, starting with Thanksgiving and continuing through “new year’s day”, including Isaac Newton’s birthday which we celebrate on December 25.