The lifespan of a star varies greatly depending on its size and type. Small stars like our sun can live for billions of years, while larger stars may only live for a few million years. The most massive stars have the shortest lifespans and can live for only a few hundred thousand years.
Yes, stars can die. When a star has used up all of its fuel, it will eventually run out of energy and stop producing heat and light. Smaller stars will become white dwarfs, while larger stars may end in a supernova explosion.
Stars are formed from clouds of gas and dust called nebulae. These clouds collapse under their own gravity, causing the gas and dust to become denser and form a protostar. As the protostar continues to grow, it eventually reaches a temperature and pressure where nuclear fusion can occur, and a star is born.
The closest star to Earth is our sun, located about 93 million miles away. The next closest star is Proxima Centauri, located about 4.2 light-years away.
Yes, we can see stars during the day, but they are typically not visible due to the brightness of the sun. However, some stars, such as Sirius, can be seen during the day under the right conditions. In general, it is much easier to see stars at night when there is less light pollution and the sky is darker.