Astronomy
T Tauri Star
[/caption] When a star is still in the earliest stages of formation, it doesn't have enough temperature in its core…
Birth of Stars
[/caption] There are hundreds of billions of stars in the Milky Way alone; young and old, large and small, quiet…
What are Stars Made Of?
[/caption] Did you ever wonder what stars are made of? You might not be surprised to know that stars are…
Star Luminosity
[/caption] Small stars release small amounts of energy, and huge stars release tremendous amounts of energy. Astronomers refer to the…
Temperature of Stars
[/caption] You might be surprised to know that the color of stars depends on their temperature. The coolest stars will…
What Were the First Stars?
[/caption] Astronomers now know that the Big Bang occurred 13.7 billion years ago. For the first few hundred million years,…
Red Supergiant Star
The biggest stars in the Universe are the red supergiant stars. And we're talking really, really big. The largest known…
What Is A Red Giant Star?
A red giant is a star of large size and low to intermediate mass that has entered the final phase…
Red Stars
[/caption] The color of a star comes from the temperature of its surface. The hottest stars are blue, cooler stars…
Astronomers Find Cosmic Dust Fountain
[/caption] Dust is everywhere in space, but the pervasive stuff is one thing astronomers know little about. Cosmic dust is…