Big Bang is the term that describes how the solar system was formed.
D. The sun. All planets in our solar system orbit the sun thus it is the best reference when describing the motion of the planets within that solar system.
The best view of the solar system is that from either of the two Voyager spacecraft which show the solar system from outside. The modern view of the solar system is that there are 8 planets orbiting the Sun. There are also a lot of smaller bodies orbiting the Sun. They are mainly the dwarf planets, asteroids, Kuiper Belt objects, and comets.
The answer to that is entirely your opinion.
I think you mean "protoplanet hypothesis". In fact, astronomers usually call it the Nebular Hypothesis A protoplanet is a planet-like object that hasn't fully developed into a planet. Why that hypothesis? It's because it is the best we have to describe the origin of the solar system according to the Laws of Physics.
Hydrogen, Helium, and a scattering of other elements.
Best guess; between 4.7 and 4.5 billion years ago.
D. The sun. All planets in our solar system orbit the sun thus it is the best reference when describing the motion of the planets within that solar system.
The best view of the solar system is that from either of the two Voyager spacecraft which show the solar system from outside. The modern view of the solar system is that there are 8 planets orbiting the Sun. There are also a lot of smaller bodies orbiting the Sun. They are mainly the dwarf planets, asteroids, Kuiper Belt objects, and comets.
The best guess is that our solar system is about 8 billion years old.
The answer to that is entirely your opinion.
I think you mean "protoplanet hypothesis". In fact, astronomers usually call it the Nebular Hypothesis A protoplanet is a planet-like object that hasn't fully developed into a planet. Why that hypothesis? It's because it is the best we have to describe the origin of the solar system according to the Laws of Physics.
heat
A
Our solar system is located on one of the arms of the spiral, off to one side of the galaxy.
Outter solar system planets
b
The best way to tell the difference is by tracking the object. If the object seems to move in an orbit around the Sun, then it is in the solar system. If not, it is outside it.