Space & Technology

March 15, 2017
 

NASA’s Webb Telescope ghostly ‘lights out’ inspection

nasa-telescope
What happens when the lights are turned out in the enormous clean room that currently houses NASA’s James Webb Space Telescope? The technicians who are inspecting the telescope and its expansive golden mirrors look like ghostly wraiths in this image as they conduct a “lights out inspection” in the Spacecraft Systems Development and Integration Facility (SSDIF) at NASA’s Goddard Space Flight Center in Greenbelt, Md.

The clean room lights were turned off to inspect the telescope after it experienced vibration and acoustic testing. The contamination control engineer used a bright flashlight and special ultraviolet flashlights to inspect for contamination because it’s easier to find in the dark.

NASA photographer Chris Gunn said “The people have a ghostly appearance because it’s a long exposure.” He left the camera’s shutter open for a longer than normal time so the movement of the technicians appear as a blur. He also used a special light “painting” technique to light up the primary mirror.

The James Webb Space Telescope is the scientific successor to NASA’s Hubble Space Telescope. It will be the most powerful space telescope ever built. Webb is an international project led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines – February 16, 2018

News It’s official: DOD releases new ‘deploy or get out’ policy – The Pentagon on Feb. 14 released its new policy on military lethality, which will begin separation procedures for service members who have been non-deployable for the last 12 months or more.     Business South Korea’s K2 tank to run on German transmission...
 
 

News Briefs – February 16, 2018

Trump’s military parade could cost $10M-$30M The White House budget director says a military parade envisioned by President Donald Trump could cost between $10 million and $30 million, although that money is not included in the administration’s new budget request. Office of Management and Budget Director Mick Mulvaney told the House Budget Committee Feb. 14...
 
 
Courtesy photograph

A different look at history

Courtesy photograph An air raid alert in Los Angeles, Feb. 25, 1942. Those of you who are students of history and enjoy the subject are the ones who will carry it forward to future generations. Many times I have been in classes...