Every star in the night sky began in a place that looked almost empty. Hidden inside a cold, dark cloud of gas and dust, gravity slowly gathered scattered material until a new source of light appeared. So, how are stars born? The process begins inside enormous molecular clouds, often called stellar nurseries. Dense pockets within … Read more
Those tiny points of light scattered across the night sky may look calm and delicate, but stars are actually enormous, energetic objects. Each one is a hot sphere of plasma held together by gravity, often producing enough power to shine across thousands of light-years. So, what is a star and how does it produce energy? … Read more
Every sunrise delivers an enormous amount of energy to Earth. Sunlight warms the ground, powers photosynthesis, drives weather patterns, and makes most life on our planet possible. Yet the Sun is around 150 million kilometers away, so how can it continuously produce so much light and heat? The answer begins deep inside the Sun, where … Read more