Apr 22, 2025 · Our Sun: Facts Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million …

Dec 4, 2025 · A clear guide to what the sun is made of, explaining sun composition, solar structure, and how space science uncovers the elements and layers powering our star.

The Sun consists mainly of the elements hydrogen and helium. At this time in the Sun's life, they account for 74.9% and 23.8%, respectively, of the mass of the Sun in the photosphere. [52] All …

3 days ago · Sun, star around which Earth and the other components of the solar system revolve. It is the dominant body of the system, constituting more than 99 percent of its entire mass. The Sun is the …

The Sun is a yellow dwarf star at the center of our solar system. Earth and all other objects in our solar system orbit around the Sun due to gravity – the Sun contains over 98% of all mass in the solar …

The Sun, like all stars, is an enormous ball of extremely hot, largely ionized gas, shining under its own power. And we do mean enormous. The Sun could fit 109 Earths side-by-side across its diameter, …

Discover the Sun's composition, from its hydrogen and helium core to its outer layers. This article will answer the question, what is the sun made of?

The fact that our Sun and the stars all have similar compositions and are made up of mostly hydrogen and helium was first shown in a brilliant thesis in 1925 by Cecilia Payne-Gaposchkin, the first woman …

Where did the Sun come from? The Sun formed 4.6 billion years ago from a gigantic collapsing cloud of gas and dust called the solar nebula. The leftover material from the Sun’s formation — a mere 0.14% …

Composition of the Sun’s Atmosphere Let’s begin by asking what the solar atmosphere is made of. As explained in Radiation and Spectra, we can use a star’s absorption line spectrum to determine what …