Birth of the universe || The universe big bang and beyond

 Birth of the universe || The universe big bang and beyond

Welcome to our channel, where we explore the secrets of the universe. Today, we go on an incredible trip to discover the origins of the cosmos and the intriguing process of star and planet creation. Prepare yourself for a fantastic trip!

The narrative begins with the Big Bang, which occurred at the beginning of the cosmos. The universe was once a hot and dense soup of particles and energy. As the cosmos expanded and cooled, gravity became a driving factor in shaping its future.

However, gravity alone cannot produce the spectacular structures we see today. These formations, which included stars and planets, needed a spark, a trigger, to set off the cosmic dance. That spark appeared as small changes in the density of matter and energy across the cosmos.

As a result, changes in density within the baby cosmos pave the way for the development of stars and galaxies. Gravity began to draw matter together throughout time, generating huge clouds of gas and dust—the universe's cosmic nurseries.

Gravity continued to act within these massive clouds, pushing the gas and dust to compress inward. These clouds began to spin as they compacted, generating revolving discs.

But stars and planets couldn't develop based merely on a revolving disc. The conservation of angular momentum was another important issue that came into play. The rotation accelerated due to the conservation of angular momentum as the gas and dust fell, like the spinning motion of an ice skater pulling their arms inside.

As a result, the core protostar the location where stars are born was formed as a result of this quick spin. The protostar's core heated up and got denser as it continued to absorb materials. Nuclear fusion, the process that generates a star's enormous energy, eventually occurred when the temperature and pressure at the core of the star surpassed a crucial threshold.

What about planets, though? As the protostar developed in the centre, gravitational forces caused the leftover gas and dust in the disc surrounding it to cluster together. These clusters, dubbed planetesimals, clashed and fused, steadily expanding in size.

However, not all planetesimals evolved into planets. Some were swept away by the expanding star, while others were expelled from the system completely. Planetary formation requires these planetesimals to collide under gravity and accumulate enough substance to create proto-planets.

As a result, these proto-planets proceeded to hit and combine, eventually increasing their size and defining their orbits through a process known as accretion. They evolved into the vast assortment of planets, moons, and other celestial bodies that we see today over millions of years.

And that is the amazing tale of how the planets and stars in our huge cosmos came to be. The marvels of the universe were created by the cosmic symphony of gravity and conservation of angular momentum, which began with the dancing fluctuations of the early cosmos and ended with the clumping of gas and dust. Please remember to like, comment, and subscribe to our channel if you liked this video and want to see more engrossing cosmic discoveries. We appreciate you coming along on this incredible adventure with us, and until next time, keep reaching upward!