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The universe is a dynamic field where the life cycles of stars create and change the universe around us. From the explosive ends of giant stars to the serene beauty of their remains, each stage contributes to the complex web of cosmic evolution.
This journey into stellar life highlights not only the birth and death of stars but also the essential elements that support life on planets like Earth.
X-ray images from the Chandra X-ray Observatory have confirmed that most of the oxygen in the universe is produced by massive stars. This highlights the importance of supernova remnants (SNRs), which contain enough oxygen to support thousands of solar systems. SNRs are the remains of exploded stars and are important for understanding our galaxy, as they are responsible for creating all the elements heavier than iron. Without these explosions, the Earth and life as we know it would not exist.
Chandra data are shown in blue and purple, while optical data from Hubble and the Very Large Telescope are shown in red and green.
This entangled planetary nebula represents the final phase of a medium-sized star like our Sun, billions of years in the future. As the star exhausts its core fuel, it expels most of its outer layers, forming twisted filaments. Despite the name, planetary nebulae are not related to planets; Early astronomers mistakenly thought they resembled planets in telescopes. This detailed image was captured by the powerful Hubble Space Telescope.
This is a spiral galaxy visible at a slight angle. Chandra’s X-rays in purple show evidence of a supermassive black hole at its center, while Webb finds dust, gas and stars in red, green and blue throughout the galaxy. This image also includes optical data from NASA Hubble in red, green and blue.
Orion Nebula: This region is a little further away, about 1,500 light years away. Chandra shows young stars that shine in X-rays, colored here in red, green and blue, while Webb shows gas and dust (in dark red) that will help form the galaxy’s next set of stars .
NGC 2467 is a vibrant star-forming region located in the southern constellation of Puppis, about 13,000 light-years from Earth. This region, discovered in the 19th century, is a giant cloud of gas, mainly hydrogen, that acts as an incubator for new stars. Bright blue young stars can be seen emerging from the dense clouds, while others remain hidden.
These stars emit intense ultraviolet radiation, making the area glow and shaping the surrounding atmosphere. A massive star above the center of a near-infrared image captured by the Hubble Space Telescope is responsible for this radiation.
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