Tag
#stars
3 articles
Astronomy & Cosmology
The Hertzsprung–Russell Diagram: Mapping the Stars
The Hertzsprung–Russell diagram plots stellar luminosity against surface temperature, revealing the main sequence, giants, and white dwarfs — and the tracks stars trace as they evolve.
10 minJul 26, 2026
Astronomy & Cosmology
The Sun: A Nuclear Furnace, Not a Fire
The Sun runs on nuclear fusion, not combustion, converting mass to energy — and that energy takes roughly 100,000 years to escape the core before reaching Earth.
10 minJul 25, 2026
Astronomy & Cosmology
The Life Cycle of Stars
How a collapsing cloud of gas becomes a star, why its mass decides everything — including the surprising fact that the biggest stars die youngest — and how it ends.
10 minJul 5, 2026