rotating cloud
mostly hydrogen and helium
Mostly of hydrogen ... over 95 %.
Early attempts to explain the origin of this system include the nebular hypothesis of the German philosopher Immanuel Kant and the French astronomer and mathematician Pierre Simon de Laplace, according to which a cloud of gas broke into rings that condensed to form planets. Doubts about the stability of such rings led some scientists to consider various catastrophic hypotheses, such as a close encounter of the Sun with another star. Such encounters are extremely rare, and the hot, tidally disrupted gases would dissipate rather than condense to form planets.
The Gaia hypothesis, also known as Gaia theory or Gaia principle, proposes that all organisms and their inorganic surroundings on Earth are closely integrated to form a single and self-regulating complex system, maintaining the conditions for life on the planet.
What you are calling a theory is based on a single testable observation. That makes it an hypothesis. A theory wants to collect up a variety of related hypotheses and derive a grand answer to why a system works the way it does.An hypothesis must be testable by empirical means and it must be provable false. If you fail to prove it false, you can accept it. That doesn't make it true, though.Now that we've reduced Aristotle's contention to an hypothesis, you must recognize that an hypothesis can never proven true. You can only support it. You can prove the hypothesis "A plant gains weight by obtaining material from the soil." false. if you weigh the dry soil before and after and find that the weight didn't change, the hypothesis is false.If the weight after was the same, you might postulate that the plant is getting its mass from the air and the water (new hypothesis). If you repeat the experiment a number of times and it always results in the same result, that gives greater support but it never makes it true.
The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests that the Solar System formed from nebulous material.
nebular hypothesis
The Nebular Hypothesis.
No, nobody uses the term "solar galactic hypothesis". You may be referring to a "solar nebula", in which a cloud of gas and dust collapses under its internal gravity to form a star and perhaps some planets.
It was first proposed in 1734 by Emanuel Swedenborg. Originally applied only to our own Solar System, this method of planetary system formation is now thought to be at work throughout the universe. The widely accepted modern variant of the nebular hypothesis is Solar Nebular Disk Model (SNDM) or simply Solar Nebular Model.
It indicates about the Origin of Solar System as per Nebular Hypothesis.
The nebular hypothesis
mostly hydrogen and helium
The nebular hypothesis is the most widely accepted model explaining the formation and evolution of the Solar System.
hydrogen and helium
hydrogen and helium
hydrogen and helium