Our sun, like all stars, is made mostly of hydrogen and helium. They are by far the most abundant elements, formed in the ...

The color differences allow scientists to study the composition of objects or the distance to galaxies. Researchers will be able to study topics like the universe's physics and the origins of ...

Scientists have discovered two rare white dwarfs—which are among the dimmest stars in the universe—that feature changes in their surface composition caused by magnetic fields. This brings the ...