The early universe refers to the period immediately following the Big Bang, characterized by rapid expansion and cooling that led to the formation of fundamental particles and eventually atoms. This era set the stage for the development of cosmic structures such as galaxies, stars, and planets through processes governed by fundamental forces and cosmic inflation.

Early Universe

The early universe

the period immediately following the Big Bang

rapid expansion and cooling

formation of fundamental particles

Formation of atoms

development of cosmic structures

Galaxies are massive systems composed of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity. They are the fundamental building blocks of the universe, each containing millions to trillions of stars and varying greatly in size, structure, and composition.

galaxies

तारे विशाल गैसों के खगोलीय निकाय हैं जो अपनी अत्यधिक गर्मी और ऊर्जा के कारण प्रकाश और गर्मी का उत्सर्जन करते हैं। ये तारे ब्रह्माण्ड के विकास और संरचना में महत्वपूर्ण भूमिका निभाते हैं।

stars

planets

Fundamental forces are the essential interactions that govern the behavior of particles and the structure of matter in the universe. There are four known fundamental forces: gravitational, electromagnetic, strong nuclear, and weak nuclear, each with distinct characteristics and roles in physical processes.

fundamental forces

Cosmic inflation is a theory that proposes a rapid exponential expansion of the universe during its first few moments after the Big Bang, solving several problems in cosmology such as the horizon and flatness problems. This brief period of inflationary expansion set the initial conditions for the universe's large-scale structure and uniformity observed today.

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