On October 20th of that same year, English astronomer Norman Lockyer observed a yellow line in the solar spectrum ... releasing mass and becoming something else). The inertness of helium is ...

Scientists have discovered how solar activity affects the velocity distribution and evolution of helium pickup ions.

First discovered in the corona surrounding the sun and later found in gases leaking from Mount Vesuvius, helium is the second ... known as the chromosphere. In the spectrum of gases he observed ...

When you pass the critical threshold of about 8% our Sun's mass, you'll ignite nuclear fusion, and form the seeds of a new star. While it's true that stars convert hydrogen into helium ...