Understanding Our Universe
Stars are massive luminous spheres of plasma held together by gravity. They play a critical role in the formation of galaxies, solar systems, and life as we know it. Our very own Sun is a star, and it's essential for sustaining life on Earth. Stars vary in size, brightness, and temperature, each having a unique life cycle from nebula to supernova.
Fascinating Star Facts:
- Our galaxy, the Milky Way, contains billions of stars!
- Stars are born in nebulas, vast clouds of gas and dust.
- The coolest stars are red, and the hottest are blue.
- When a massive star explodes in a supernova, it creates a neutron star or a black hole.
