Star clusters are of great importance in any galaxy: they are the birthplace of new stars, often containing massive stars of ...

The emission of X-rays is usually the domain of the energetic events of the universe: hot stars, supermassive black holes, ...

In its latest study by the X-Ray Imaging and Spectroscopy Mission (XRISM) spacecraft, done between 23:20 on November 26 to 20:38 on November 28, 2025, the probe carried out a Target of Opportunity ...

I/ATLAS emanates unusual X-rays? Scientists report new X-ray activity from interstellar comet 3I/ATLAS during XRISM observations. The glow may link to charge-exchange reactions between solar wind and ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

XRISM's Xtend telescope records the first X-ray glow from interstellar comet 3I/ATLAS, revealing how alien material interacts ...

XRISM’s Xtend telescope captured the first X-ray image of interstellar comet 3I/ATLAS, revealing a faint X-ray glow and ...

Breakthrough photonic quantum chip emits ultra-short 2 nm X-ray waves, advancing quantum materials and powering next-gen ...

Using NASA's Swift and Fermi space telescopes, Indian astronomers have conducted a long-term multiwavelength study of a ...

A high-altitude balloon telescope has revealed new patterns in X-rays emitted near the black hole Cygnus X-1. These signals ...

X-rays, a type of electromagnetic radiation with wavelengths from 0.01 to 10 nanometers, pack enough energy to pierce materials and interact with inner-shell electrons. 1 When they hit a sample, ...

SpaceX is acquiring more spectrum licenses from EchoStar in exchange for about $2.6 billion worth of shares in Elon Musk's aerospace company. The transaction is an expansion of the $17 billion deal ...