Primordial supernovae got the ball rolling a quick hundred million years or so after the start of the universe.

Water was present just a couple hundred million years after the Big Bang, according to a new study, shaking up the timeline ...

“Before the first stars exploded, there was no water in the Universe because there was no oxygen. Only very simple nuclei ...

“Before the first stars exploded, there was no water in the Universe because there was no oxygen,” said Daniel Whalen, a ...

China has set a new milestone in nuclear fusion research with its Experimental Advanced Superconducting Tokamak (EAST), ...

Fusion. The new-style “fusion” of hydrogen and the old-style “fission” of uranium have a family resemblance. Both depend on the odd and unexplained fact that atomic nuclei do not weigh as ...

During the majority of a star’s lifetime, hydrogen nuclei fuse together to form helium nuclei. As the star runs out of hydrogen, other fusion reactions take place forming the nuclei of other ...

As the mass falls together it gets hot. A star is formed when it is hot enough for the hydrogen nuclei to fuse together to make helium. The fusion process releases energy, which keeps the core of ...

At about this time, neutral atoms are formed as electrons link up with hydrogen and helium nuclei. The microwave background radiation hails from this moment, and thus gives us a direct picture of ...

A more common direct structural measurement method, X-ray diffraction, is limited by the nature of hydrogen. X-rays primarily scatter off electrons, not nuclei. As the electronic charge ...