The flat Earth, the geocentric model, heliocentricity, galacticocentricity, the Big Bang, the Inflationary Big Bang… Each model explains what was known at the time and what the measurements could confirm.
We cannot say that these theories were wrong; perhaps it would be truer to say they were incomplete..
The solar system consists of eight planets.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune are the planets in ascending order from the distance of the Sun.
Note: Pluto used to be counted as a planet till 2006.
It was located at the farthest distance from the sun..
The Short Answer:
The big bang is how astronomers explain the way the universe began.
It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching.
The universe is everything.
It includes all of space, and all the matter and energy that space contains.
It even includes time itself and, of course, it includes you.
Earth and the Moon are part of the universe, as are the other planets and their many dozens of moons..
Information about The Universe covers topics like The Universe, Origin of the universe, Stages in Big Bang Theory, Evidence in support of Big Bang Theory, Stars, Final Stages of a Star̛ s Life, This point will become clearer from the following discussion and The Universe Example, for UPSC 2023 Exam..
