Premium Only Content

James Webb Telescope Alignment Complete In Full Focus Ready for Instrument Commissioning
It is official, alignment of NASA’s James Webb Space Telescope is now complete. The alignment of the telescope across all of Webb’s instruments can be seen in a series of images that captures the observatory’s full field of view.
Featured in this video are engineering images demonstrating the sharp focus of each instrument. For this test, Webb pointed at part of the Large Magellanic Cloud, a small satellite galaxy of the Milky Way, providing a dense field of hundreds of thousands of stars across all the observatory’s sensors. The sizes and positions of the images shown depict the relative arrangement of each of Webb’s instruments in the telescope’s focal plane, each pointing at a slightly offset part of the sky relative to one another. Webb’s three imaging instruments are NIRCam (images shown here at a wavelength of 2 microns), NIRISS (image shown here at 1.5 microns), and MIRI (shown at 7.7 microns, a longer wavelength revealing emission from interstellar clouds as well as starlight). NIRSpec is a spectrograph rather than imager but can take images, such as the 1.1 micron image shown here, for calibrations and target acquisition. The dark regions visible in parts of the NIRSpec data are due to structures of its microshutter array, which has several hundred thousand controllable shutters that can be opened or shut to select which light is sent into the spectrograph. Lastly, Webb’s Fine Guidance Sensor tracks guide stars to point the observatory accurately and precisely; its two sensors are not generally used for scientific imaging but can take calibration images such as those shown here. This image data is used not just to assess image sharpness but also to precisely measure and calibrate subtle image distortions and alignments between the instrument sensors as part of Webb’s overall instrument calibration process.
Credit: NASA's Goddard Space Flight Center
-
LIVE
BLoobsGaming
4 hours agoMonster Hunter Wilds! Grinding away Solo
1,273 watching -
LIVE
Meisters of Madness
4 hours agoImpossible and Overpowered - Part 2 (Catch Up)
178 watching -
LIVE
MDGgamin
2 hours ago🔴LIVE - TARKOV - Christ Is King Happy Sunday!!! - #RumbleTakeover
326 watching -
LIVE
RamrodJenkins
3 hours agoTime to HUNT MONSTERS in the WILD! Happy Sunday!
116 watching -
LIVE
Chi-Town Gamers Livestreams
12 hours ago $0.49 earnedBaldur's Gate 3 W/ CTG & XayRico Ep. 3 | Then GTA Online Later
161 watching -
LIVE
Astral Doge Plays!
7 hours agoFinal Fantasy VI ~LIVE!~ The Floating Continent
1,752 watching -
LIVE
Major League Fishing
3 days agoLIVE Tackle Warehouse Invitationals, Stop 2, Day 3
1,085 watching -
18:41
Bearing
1 day agoAMERICA: The Greatest Reality TV Show of ALL TIME!! 🤣🎥
33.5K66 -
1:01:36
PMG
1 day ago $2.91 earnedDOGE & Immigration vs. Epstein, Health & mRNA? How are we doing?
16.6K12 -
1:23:36
Squaring The Circle, A Randall Carlson Podcast
1 day ago#41 Why the Near Future Lunar Landings Are Important to Humanity’s Future - Squaring the Circle
21.8K27