Using the X-shooter instrument at ESO's Very Large Telescope (VLT), German astronomers have detected three new pre-white ...

The situation is very different in space. The sun is comprised of about 75% by mass of hydrogen and 24% of helium. The remaining one percent is made up of all the heavier elements. In the high ...

Stars like our sun fuse hydrogen in their cores into helium. White dwarfs are stars that have burned up all of the hydrogen they once used as nuclear fuel. Fusion in a star's core produces heat ...

Hydrogen and helium separate at pressures and temperatures found within the gas giant Jupiter’s marbled exterior is pretty familiar territory, but it’s still not clear what happens far below ...

Over the years, I have featured many articles about our sun, including sunspots, solar flares, cycles and its activity. Last week was a landmark occasion for NASA as a sophisticated solar probe ...