Astronomers have traced a mysterious blast of X-rays to a star that, like a cosmic action hero, just refused to die.

Hollow atoms are special atoms with multiple missing electrons in their inner shells, while their outer shells are still ...

Now, let’s take a closer look at X-rays. This technology has been around much longer than MRI. It dates back to the late 1800s. For quite some time, it was the only non-invasive way for doctors to ...

A new analysis of BL Lacertae by NASA’s Imaging X-ray Polarimetry Explorer sheds light on the emission mechanisms of active ...

While radiation treatments designed to kill cancer cells have come a long way, scientists and doctors are always exploring ...

An international team of astrophysicists have uncovered a possible origin of fast X-ray transients (FXTs) — mysterious, ...

We report the direct generation of high-power and large-energy dissipative soliton resonance square pulses at 1940.8 nm from a compact mode-locked Tm-doped all-fiber laser. A fiber loop mirror of ...

Since their discovery by Wilhelm Roentgen in 1895, X-rays have become a staple of modern medical care, from imaging teeth and ...

NASA has released a breathtaking new image of the Andromeda Galaxy, our closest galactic neighbor. Also known as Messier 31, or M31, Andromeda is located about 2.5 million light-years from Earth.

The discovery marks the most distant mini halo ever found, doubling the distance of any previously known example. It offers ...

A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already steeped in high-energy particles. The finding hints at ancient black hole ...