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April 2024

Scroll down to learn more about this month's featured image from the James Webb Space Telescope and to see more site updates.

Click on the image to enlarge

On June 25, 2023, NASA’s James Webb Space Telescope turned to famed ringed world Saturn for its first near-infrared observations of the planet. The initial imagery from Webb’s NIRCam (Near-Infrared Camera) is already fascinating researchers. Saturn itself appears extremely dark at this infrared wavelength observed by the telescope, as methane gas absorbs almost all of the sunlight falling on the atmosphere. However, the icy rings stay relatively bright, leading to the unusual appearance of Saturn in the Webb image. This image was taken as part of Webb Guaranteed Time Observation program 1247. The program included several very deep exposures of Saturn, which were designed to test the telescope’s capacity to detect faint moons around the planet and its bright rings. Any newly discovered moons could garner important clues about the flow of material in the current Saturn system, as well as its past history.

The featured images on this and other site update pages are taken from the James Webb Telescope images page. Click here to see many more images on the Webb Space Telescope page.

Recent Site Updates

April 2024

Topics Updated

  • Other update

Click here to open the monthly update details page. On the details page you will also have access to all monthly updates back to January 2023.

March 2024

Southern Ring Nebula; two photos; different light filters

Topics Updated

  • D68 Authors, Meeting Minutes, Other update, Reunion Announcement, Travelogue, Webinar Announcement

Click here to open the monthly update details page. On the details page you will also have access to all monthly updates back to January 2023.

February 2024

Topics Updated

  • Other update, Webinar Announcement

Click here to open the monthly update details page. On the details page you will also have access to all monthly updates back to January 2023.
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