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James Webb Space Telescope

Viewing Posts from April 2023

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    Mid-Infrared Instrument Operations Update

    In this illustration, the multilayered sunshield on NASA’s James Webb Space Telescope stretches out beneath the observatory’s honeycomb mirror

    All 17 observing modes of the James Webb Space Telescope undergo routine performance monitoring and calibration. This month, while performing calibration by comparing the brightness of standard stars that have been well-cataloged by other observatories to what Webb's Mid-Infrared Instrument (MIRI) was receiving, team members noticed a discrepancy in the data. Further analysis of MIRI's …

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    Webb Shows Areas of New Star Formation and Galactic Evolution

    A rectangular image that appears to be two separate square images separated by a wide black gap. The gap obscures the galaxies present between the two square images. Each square image contains thousands of galaxies with many different colors. Some galaxies are shades of yellow, while others are white, blue, orange and red. Most of these galaxies appear as fuzzy ovals, but others appear thin and long. A few galaxies with distinct spiral arms are spread throughout.

    Editor's Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. On Oct. 11, 2022, NASA's James Webb Space Telescope spent over 20 hours observing the long-studied Hubble Ultra Deep Field for the first time. The general observer program (GO 1963) focused on analyzing the field …

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