New observations reveal that the relationship between ultraviolet and X-ray light in quasars has changed over billions of ...

The third known interstellar comet to visit our solar system has just done something no one had seen before: it lit up in ...

Most telescopes capture comets in visible light, but XMM-Newton deployed its high-sensitivity EPIC-pn camera for a 20-hour ...

Astronomers have mapped out half the universe in X-ray light, using a space telescope called eROSITA. The new map, which contains almost a million X-ray sources, is the basis of dozens of new ...

While NASA's James Webb Telescope and other instruments have already spotted abundant water vapor, carbon monoxide and carbon ...

The European Space Agency's X-ray space observatory XMM-Newton observed interstellar comet 3I/ATLAS on 3 December for around 20 hours. During that time, the comet was about 282–285 million km from the ...

Uwe Bergmann receives funding from the Department of Energy and has previously worked at SLAC and Lawrence Berkeley National Laboratory. Thomas Linker receives funding from the Department of Energy ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A glowing supernova ...

Tightly focused XFEL pulses are directed at a sample made of copper or manganese. Any X-ray photons that the sample emits in the same forward direction as the input pulse hit a piece of ...

With the help of the world's most powerful X-ray laser, a research team has achieved an important breakthrough: Using the example of the pharmaceutically active substance 2-thiouracil, they applied a ...