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ALT While the purpose of this image was to focus on the bright star at the center for alignment evaluation, Webb's optics and NIRCam are so sensitive that the galaxies and stars seen in the background show up. At this stage of Webb’s mirror alignment, known as “fine phasing,” each of the primary mirror segments have been adjusted to produce one unified image of the same star using only the NIRCam instrument. This image of the star, which is called 2MASS J17554042+6551277, uses a red filter to optimize visual contrast. Credit: NASA/STScI
Saffire-V Experiment January 2021

ALT Snowmobile rides. Deep-sea dives. Forest treks. NASA experts travel to some amazing environments, from the very hot to the very cold, to learn more about our planet. Jessica Merzdorf, Earth science writer, recaps a February field campaign to Grand Mesa, Colorado.

ALT Planetary protection specialists with the cruise stage of the Mars 2020 Perseverance rover on March 20, 2018. From left to right: Kristina Stott, Planetary Protection Engineer for the Mars 2020 mission; Moogega Stricker, Mars 2020 Planetary Protection Lead Engineer; Lisa Pratt, NASA Planetary Protection Officer; and Brian Shirey, Mars 2020 Deputy Lead Planetary Protection Engineer. Credits: Moogega Stricker




























