NASA's James Webb Space Telescope Captures Image of Spiral Galaxy NGC 2566.

In this month's feature image from NASA/ESA/CSA's James Webb Space Telescope, the spiral galaxy NGC 2566, located 76 million light-years away in the constellation Puppis, is displayed in breathtaking detail. The image is a composite from two of Webb's powerful instruments—the Near-InfraRed Camera (NIRCam) and Mid-InfraRed Instrument (MIRI)—showcasing the galaxy's well-defined spiral arms, its long central bar, and the intricate network of gas, dust, and stars.

As one of the nearest galaxies to Earth, NGC 2566 provides an exceptional opportunity for astronomers to study star formation and the interaction between stars, gas, and dust in galaxies. This galaxy is part of a larger survey involving 55 galaxies within the local Universe, aimed at gaining insights into the star-formation process. Webb’s observations are central to a dedicated programme (#3707) that explores the relationships between stars, gas, and dust in nearby star-forming galaxies.

Webb's MIRI captures mid-infrared wavelengths, revealing the galaxy's warm interstellar dust, including complex molecules known as polycyclic aromatic hydrocarbons (PAHs). Meanwhile, NIRCam’s near-infrared data provide a detailed view of NGC 2566's stars, some of which are hidden within dense gas clouds. The NIRCam observations also capture light emitted by the hydrocarbon molecules that populate the galaxy.

To further explore star formation in NGC 2566, astronomers are combining Webb’s data with other observations. The Atacama Large Millimeter/submillimeter Array (ALMA), consisting of 66 radio dishes, offers detailed views of cold molecular clouds where stars are born. Additionally, NASA/ESA’s Hubble Space Telescope has also observed the galaxy, providing data that help identify young stars, especially those emitting ultraviolet and visible light.

Together, data from Webb, Hubble, and ALMA offer a comprehensive picture of NGC 2566's cold gas, warm dust, and brilliant stars. This wealth of data is part of Webb's Treasury programme, making it available immediately to scientists and the public, accelerating our exploration of the Universe.

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