Astronomy & Space

APOD: 2026 September 17 – A Treasure Chest in the Carina Nebula

How the science connects

Star formationStellar evolutionNebulae

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NASA's James Webb Space Telescope has captured an image of a dust pillar in the Carina Nebula, located approximately 7,500 light-years from Earth. The pillar, shaped by stellar winds and radiation from nearby massive stars including the Eta Carinae system, contains a compact cluster of roughly 70 young stars estimated to be only 1.3 million years old. The cluster includes a massive star approximately 19 times the mass of our Sun, with the ongoing star formation process creating an opening at the pillar's head that resembles a treasure chest.


This observation provides insights into active star formation processes and how massive stellar systems shape their surrounding environments through radiation and stellar winds. Studying young stellar clusters helps astronomers understand stellar evolution, particularly how massive stars form and develop in dense interstellar environments.


APOD

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A colorful nebula resembles an open treasure chest on a field of stars

A Treasure Chest in the Carina Nebula

Explanation: This treasure chest is full of stars. The featured image was obtained with NASA‘s James Webb Space Telescope and shows a dust pillar in the Carina Nebula inside our Galaxy, roughly 7500 light-years away. It is formed by interstellar gas and dust, and shaped by powerful stellar winds and radiation from neighboring stars like the nearby Eta Carinae stellar system which is more luminous than 5 million suns. The star formation inside the pillar is excavating its head, creating the open lid of the chest. Astronomers estimate that there are about 70 stars in a compact cluster inside the pillar. This cluster is now thought to be only around 1.3 million years old. Its bounty of young stars includes a massive star approximately 19 times as massive as the Sun. More massive stars are rarer, shine brighter and evolve faster than less massive stars. They are the shiniest jewels in the treasure chest.

APOD’s main NASA site is moving : From apod.nasa.gov to science.nasa.gov/apod
Tomorrow’s picture: The Triangulum Galaxy

Date September 17, 2026
Credit ESA/Webb, NASA & CSA, M. Reiter; Acknowledgement: M. H. Özsaraç
Authors & editors: Cecilia Chirenti, Robert Nemiroff, Jerry Bonnell, Keighley Rockcliffe
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

Source: APOD: 2026 September 17 – A Treasure Chest in the Carina Nebula