This Video explores the evolution of scientific perspectives on the origins and nature of the universe. Early ideas from Aristotle and Ptolemy posited an Earth-centered cosmos with celestial spheres. Later, Copernicus proposed a revolutionary heliocentric model where the Earth and planets orbited the Sun. Kepler corrected the model to show elliptical rather than circular orbits. Newton then outlined universal gravitational forces governing orbital motion. The notion of an infinite static universe prevailed for centuries. However, 20th-century evidence revealed an expanding universe likely originating from a dense, hot Big Bang singularity. This placed new constraints on concepts of time, spacetime, and cosmic origins. Seeking a comprehensive "theory of everything" to fully describe the universe raises paradoxes about whether such a theory could logically encompass the reasoning behind its own discovery. Justifying the search beyond practical necessity, humanity’s quest for knowledge and meaning provides profound motivation for unraveling cosmic mysteries in our yearning to understand the universe we inhabit.
#universe
#space
#cosmos
#physics
#science
#bigbang
#galaxy
#star
#astronomy
#cosmology