Deep observations of two X-ray bright clusters of galaxies with ESA’s XMM-Newton satellite allowed a group of international astronomers to measure their chemical composition with an unprecedented ...
The James Webb Space Telescope's detection of tellurium in the violent environment of a dead-star merger is a step toward determining where the universe's heaviest elements come from. When you ...
Billions of light years away in a remote part of the universe, two neutron stars – the ultradense remnants of dead stars – collided. The catastropic cosmic event sent light and particles, including a ...
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