The James Webb telescope may have detected the universe's earliest and most distant known black hole at the heart of galaxy ...

Atoms with more than 4 valence electrons tend to gain electrons to achieve a stable configuration, forming negative ions ...

Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a ...

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of ...

After few femtoseconds, the double excited state decays by electron emission, generating a higher charge state. Compared to ...

Antimatter particles are mirror versions of matter particles, with the opposite values of properties such as electric charge.

Whether it is a cube of sugar or a chunk of a mineral, a mathematical analysis can identify how many fragments of each size ...

The United States faces an AI challenge similar to the Atomic Age and needs clear federal rules to secure leadership and manage proliferation risks amid great power competition.