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James Webb Space Telescope

Viewing Posts from December 2022

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    James Webb Space Telescope Operations Update

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

    The James Webb Space Telescope resumed science operations Dec. 20, after Webb's instruments intermittently went into safe mode beginning Dec. 7 due to a software fault triggered in the attitude control system, which controls the pointing of the observatory. During a safe mode, the observatory's nonessential systems are automatically turned off, placing it in a …

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    Webb Glimpses Field of Extragalactic PEARLS, Studded With Galactic Diamonds

    On a black background, a white border outlines an irregularly shaped, mostly rectangular area. Within the outline lie hundreds of galaxies of various shapes, colors, and sizes. Two white boxes on the left side of the field enclose groups of galaxies. From each box, a line extends out beyond the border of the galaxy field to an enlarged image of the galaxy group, revealing streams of stars and tidal tails. On the right side, a third box encloses a spiral galaxy. A line extends beyond the border of the galaxy field to an enlarged image of the spiral galaxy. A few stars are also scattered across the image. Some have Webb's characteristic 8 diffraction spikes, while others have additional spikes due to a combination of image exposures.

    NASA's James Webb Space Telescope has captured one of the first medium-deep wide-field images of the cosmos, featuring a region of the sky known as the North Ecliptic Pole. The image, which accompanies a paper published in the Astronomical Journal, is from the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) GTO program. "Medium-deep" …

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    NASA’s Webb Reaches New Milestone in Quest for Distant Galaxies

    Infographic of the spectra of four distant galaxies, showing the shift of the location of a spectral feature called the Lyman break, and the relationship between shift and time since the light was emitted, with images for reference.

    Editor's Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. An international team of astronomers has used data from NASA's James Webb Space Telescope to report the discovery of the earliest galaxies confirmed to date. The light from these galaxies has taken more than 13.4 …

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    Webb, Keck Telescopes Team Up to Track Clouds on Saturn’s Moon Titan

    Editor's Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. On the morning of Saturday, Nov. 5, an international team of planetary scientists woke up with great delight to the first Webb images of Saturn's largest moon, Titan. Here, Principal Investigator Conor Nixon and others …

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