Everything happened after the big bang.
The big bang theory has nothing to do with the formation of planets.
It all started with the Big Bang. All the matter created from the Big Bang eventually formed planets and every thing else. From the moment matter was created during the Big Bang the matter was expanding and moving really fast. So eventually all the planets and stars and galaxies that were formed started to spin around each other from the velocity that was created.
It started with the big bang. This created the stars and planets
Probably several tens to hundreds of millions of years following the Big bang. Afterwards, planets formed around stars and became a permanent feature of the Universe.
Neptune came from the big bang like the rest of the planets it was formed by all of the gasses that were let off when the big bang happened.
Without the Big Bang there would be NOTHING. The entire Universe - including space, and apparently even time! - is the result of the Big Bang.
Scientists "speculate" that the Big Bang created antimatter, but it was destroyed when coming into contact with stars, planets, and other matter.
If the big-bang theory is true, the stars, planets, and other universal bodies were progressively formed, so there were much less stars than we have today, and the fomation of new stars is compensated by the death of others.
No. The hydrogen in the universe was formed during the Big Bang. Stars consume hydrogen, fusing it into helium.
Yes. Planets orbit around the stars, so the stars must have preceded the planets. Additionally, our concept of the "big bang" implies that the early universe was composed of 98% or more hydrogen, a percent and a bit as helium, and "everything else" as about 1%. All of the heavier solid elements were created in supernova explosions in the cores of massive stars.
The first population III stars formed about 400 million years after the big bang. The first black holes would have formed when these stars exploded, about a few millions years later.See related link for a timeline of the big bang.
It was formed by the big bang but nobody knows how it was formed or what there was before the big bang