ESA’s XMM-Newton space observatory has captured Comet 3I/ATLAS in X-ray light. This marks the first X-ray observation of the third interstellar object recorded in our Solar System. The observations ...

A rare interstellar comet has been caught in X-rays by two space telescopes, revealing how its gases interact with charged particles from the sun as it travels through the inner solar system.

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 ...

Taking advantage of the high sensitivity of ESA’s XMM-Newton and the sharp vision of NASA’s Chandra X-Ray space observatories, astronomers have studied the behaviour of massive fossil galaxy clusters, ...

3I/ATLAS, a rare visitor from beyond the solar system, has revealed an unexpected signal. Scientists at the European Space Agency (ESA) have confirmed that their XMM-Newton space telescope detected a ...