How do scientists believe that earth and the other planets formed?

Answer 1

The earth was created a long after the "big bang" which was not an explosion but a sudden expansion of that singularity, the matter then began to form with the universe as it cooled, billions of years later and parsecs away our solar system's dust cloud began to collapse and form the celestial bodies present today.

Answer 2

Before the earth was created, there had to be a universe - the stars and the sun, around which our world revolves. The universe is considered to have started with a "Big Bang", when a single primordal point of matter and energy exploded, eventually expanding to form the universe as we know it. Science tells us that the Earth was then formed from hot gases around the Sun. Present estimates put the age of the earth at 4.54 billion years, plus or minus 45 million years.

Answer 3

Scientists hold that the planets coalesced gravitationally out of the same proto-solar disk, a nebula of gas and dust, from which the Sun and the remainder of the solar system was formed.

Answer 4

They believe the planets formed from a disc of gas and dust called a "protoplanetary disc".