Tag Archive for 'James Webb Space Telescope'

Color image of the Sparkler galaxy made by the NASA/ESA/CSA James Webb Space Telescope. Image credit: Mowla et al., arXiv: 2208.02233.

Webb Spots Ancient Globular Clusters in Gravitationally Lensed Galaxy

Aug 15, 2022 by Natali Anderson

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have spotted ancient globular clusters around a remarkable galaxy that is strongly gravitationally...

This image from Webb’s Near Infrared Camera (NIRCam) shows the Maisie’s galaxy, one of the earliest galaxies ever observed; if its estimated redshift of 14.3 is confirmed with future observations, that would mean we’re seeing it as it was just 290 million years after the Big Bang. Image credit: NASA / STScI / CEERS / TACC / S. Finkelstein / M. Bagley / Z. Levay.

Webb Spots Candidate for Most Distant Known Galaxy

Aug 4, 2022 by News Staff

The new Webb images, taken by its two cameras — the Near Infrared Camera and the Mid-Infrared Instrument — as part of the Cosmic Evolution...

This image of the Cartwheel Galaxy and its companion galaxies is a composite from Webb’s NIRCam and MIRI instrument. Image credit: NASA / ESA / CSA / STScI / Webb ERO Production Team.

Webb Captures Incredible Images of Cartwheel Galaxy

Aug 2, 2022 by Enrico de Lazaro

Using two instruments aboard the NASA/ESA/CSA James Webb Space Telescope, astronomers have produced detailed images of the Cartwheel Galaxy and its two...

This Webb image shows multiply lensed background galaxies around SMACS J0723.3-7327 (cyan indicates already known multiple image systems; green indicates new multiply lensed sources); the insets show enlarged images of a very distant galaxy with some substructure indicated by the green arrows. Image credit: NASA / ESA / CSA / STScI / Max Planck Institute for Astrophysics.

Webb Spots Extremely Distant, Gravitationally Lensed Galaxy

Aug 2, 2022 by Enrico de Lazaro

Astronomers from the Max Planck Institute for Astrophysics and elsewhere have analyzed an image taken by the NASA/ESA/CSA James Webb Space Telescope of...

This image from Webb’s NIRCam instrument 2.12 micron filter shows Jupiter (center) and its moon Europa (left). Image credit: NASA / ESA / CSA / B. Holler & J. Stansberry, STScI.

Webb Team Releases Test Images of Jupiter and Its Moons

Jul 19, 2022 by News Staff

Several images of Jupiter and its moons as well as images and spectra of solar system asteroids from Webb’s commissioning period are now available on...

Webb’s First Full-Color Images Released

Jul 12, 2022 by News Staff

The NASA/ESA/CSA James Webb Space Telescope mission today released its first full-color scientific images and spectroscopic data. An artist’s impression...

This Webb image shows the galaxy cluster SMACS J0723.3-7327. Image credit: NASA / ESA / CSA / STScI.

Webb Reveals Deepest View of Universe Yet

Jul 12, 2022 by News Staff

Known as Webb’s First Deep Field, the new image shows the massive galaxy cluster SMACS J0723.3-7327. This Webb image shows the galaxy cluster SMACS J0723.3-7327....

Engineering images of sharply focused stars in the field of view of each instrument demonstrate that the NASA/ESA/CSA James Webb Space Telescope is fully aligned and in focus. 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 here 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 sensors as part of Webb’s overall instrument calibration process. Image credit: NASA / STScI.

Webb Successfully Completes Alignment Phase

Apr 29, 2022 by News Staff

After full review, the NASA/ESA/CSA James Webb Space Telescope has been confirmed to be capable of capturing well-focused images with each of its four...

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 a star called 2MASS J17554042+6551277 uses a red filter to optimize visual contrast. Image credit: NASA / STScI.

Webb’s Optics Works Successfully, NASA Says

Mar 16, 2022 by News Staff

Following the completion of mirror alignment steps, the Webb team expects that the telescope’s optical performance will be able to meet or exceed its...

This mosaic, taken by the NIRCam instrument onboard the James Webb Space Telescope, shows 18 images of the same star. Image credit: NASA.

James Webb Space Telescope Spots Its First Star

Feb 14, 2022 by News Staff

Each dot visible in this image mosaic from the Near Infrared Camera (NIRCam) instrument onboard the NASA/ESA/CSA James Webb Space Telescope is the same...

An artist’s impression of the James Webb Space Telescope. Image credit: ESA.

Webb’s Camera Captures Its First Photons of Starlight

Feb 8, 2022 by News Staff

On February 3, 2022, astronomers saw the first photons of starlight that traveled through the NASA/ESA/CSA James Webb Space Telescope and were detected...

Webb Arrives at Second Lagrange Point of Sun-Earth System

Jan 25, 2022 by News Staff

On January 24, 2021, the NASA/ESA/CSA James Webb Space Telescope fired its thrusters for 297 seconds to complete the final post launch course correction...

Webb’s mirror consists of a honeycomb-like pattern of 18 hexagonal, gold-coated mirror segments. Image credit: ESA.

Webb Successfully Deploys Its Primary Mirror

Jan 10, 2022 by News Staff

On January 7 and 8, 2021, two wings of 6.4-m (21-foot) gold-coated primary mirror of the NASA/ESA/CA James Webb Space Telescope were deployed and latched...

The James Webb Space Telescope lifted off on an Ariane 5 rocket from Europe’s Spaceport in French Guiana on December 25, 2021, on its exciting mission to unlock the secrets of the Universe. Image credit: ESA / CNES / Arianespace.

Webb Launches to Study Universe in Infrared

Dec 26, 2021 by News Staff

The James Webb Space Telescope, an international partnership between NASA, ESA and the Canadian Space Agency (CSA), launched at 7:20 a.m. EST (13:20 CET)...

An artist’s impression of a rocky exoplanet orbiting a white dwarf. Image credit: Jack Madden / Cornell University.

Next-Generation Telescopes Could Detect Signs of Life on Rocky Planets around White Dwarfs

May 1, 2020 by News Staff

A team of astrobiologists from the Carl Sagan Institute at Cornell University has developed a spectral field guide for Earth-like exoplanets transiting...

This is an artist's impression of an exoplanet. Image credit: Ron Miller.

NASA’s NExSS Initiative to Look for Signs of Extraterrestrial Life

Apr 23, 2015 by News Staff

NASA’s Nexus for Exoplanet System Science (NExSS) initiative will bring together top research groups and will provide a synthesized approach in the search...

Hubble Ultra Deep Field 2014

Jun 4, 2014 by News Staff

The Hubble Ultra Deep Field 2014 – the most colorful and comprehensive picture ever assembled of the evolving Universe – has been captured...

This image, taken with the Hubble Space Telescope, shows the giant galaxy cluster Abell 1689 and the newly discovered galaxies, circled. Image credit: NASA / ESA / B. Siana and A. Alavi, University of California, Riverside.

Abell 1689 Helps Astronomers Discover Dozens of Early Galaxies

Jan 8, 2014 by News Staff

An international team of astronomers, reporting in the Astrophysical Journal (arXiv.org), used the magnification power of the massive cluster of galaxies...

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