This new NASA/ESA hubble space telescope This image shows the Cat’s Eye Nebula, also known as NGC 6543, one of the most visually complex remnants of a dying star. planetary nebula Located in the constellation Draco, it has fascinated astronomers for decades with its elaborate, multi-layered structure. observation by Gaia of ESA The mission will locate this nebula 4,400 light-years away.

Planetary nebulae are so called because their round shape made them look like planets when seen with early telescopes, but they are actually expanding gases ejected from a star during its final stages of evolution. This fact was first discovered in 1864 in the Cat’s Eye Nebula itself. spectrum The light reveals the emission from individual molecules that is characteristic of gas and distinguishes planetary nebulae from stars and galaxies.

Hubble also revolutionized our understanding of planetary nebulae. The detailed images showed that the planetary nebula’s simple circular appearance, seen from the ground, belies a highly complex morphology. This was especially true of the Cat’s Eye Nebula. hubble image In 1995, a never-before-seen structure was revealed, expanding our understanding of how planetary nebulae form.

This time, Hubble also joined us. Euclid of ESA Combining Hubble’s and Euclid’s eyes reveals the surprising complexity of this celestial star’s death. Euclid is primarily designed to map the distant universe, and the Cat’s Eye Nebula is part of it. deep image investigation. In Euclid’s wide near-infrared and visible light fields of view, the arcs and filaments of the nebula’s bright central region lie within a halo of colorful gaseous debris moving away from the star. This ring was ejected from the star early, before the central host nebula formed. The entire nebula stands out against a background full of distant galaxies, showing the beauty of local astrophysics and what the farthest reaches of the universe look like with Euclid.

In its wide field of view of the nebula and its surroundings, Hubble captures the swirling gas core itself in new high-resolution visible-light images, adding further detail to the image’s center. The data reveals a tapestry of concentric shells, jets of high-velocity gas, and dense knots sculpted by impact interactions, exhibiting features that appear almost surreal in their complexity. These structures are thought to record temporary mass loss from the dying star at the nebula’s center, creating a kind of cosmic “fossil record” of its final evolutionary stage.

The combination of Hubble’s focused view and Euclid’s deep-field observations not only highlights the nebula’s delicate structure, but also places it within the broader context of the universe explored by both space telescopes. Together, these missions provide rich and complementary views of NGC 6543, revealing the delicate interactions between the end-of-life processes of a star and the vast tapestry of space beyond.