Why is the nebular theory widely accepted?

Last Update: April 20, 2022

This is a question our experts keep getting from time to time. Now, we have got the complete detailed explanation and answer for everyone, who is interested!

Asked by: Frankie Boyle II
Score: 4.9/5 (10 votes)

The nebular theory holds that the solar system formed from the gravitational collapse of a great, giant cloud of gas and dust. This theory is widely accepted by scientists today because of its success in explaining the major characteristics of our solar system.

What is the nebular theory and why is it widely accepted by scientists today?

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 the Solar System is formed from gas and dust orbiting the Sun.

Is the nebular theory widely accepted in the scientific community?

Although the nebular theory is widely accepted, there are still problems with it that astronomers have not been able to resolve. ... According to the nebular theory, all planets around a star should be tilted the same way relative to the ecliptic.

What evidence supports the nebular theory?

Comets, asteroids, and meteorites recovered on Earth also provide a number of clues and evidence of Nebular-type development. And the motions of most solar system objects orbit and rotate in an organized fashion.

What theory of the solar system is the most accepted?

The most widely accepted hypothesis of planetary formation is known as the nebular hypothesis. This hypothesis posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years.

The nebular theory

15 related questions found

What does the nebular theory explain?

Currently the best theory is the Nebular Theory . This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula . ... Most likely the next step was that the nebula flattened into a disk called the Protoplanetary Disk ; planets eventually formed from and in this disk.

How old is our universe?

Using data from the Planck space observatory, they found the universe to be approximately 13.8 billion years old.

What 3 pieces of evidence support the nebular theory?

Comets, asteroids, and meteorites recovered on Earth also provide a number of clues and evidence of Nebular-type development. And the motions of most solar system objects orbit and rotate in an organized fashion.

What does not support the nebular theory?

Although the nebular theory is widely accepted, there are still problems with it that astronomers have not been able to resolve. For example, there is the problem of tilted axes. According to the nebular theory, all planets around a star should be tilted the same way relative to the ecliptic.

What are the steps of nebular theory?

What are the five steps of the nebular hypothesis?
  • step one(4) -The solar nebula consisted of. -hydrogen,
  • step two(2) -A disturbance.
  • step three(2) -The solar nebula assumed a flat, disk shape.
  • step four(2) -Inner planets began to form from metallic.
  • step five(2) -Larger outer planets began forming from fragments.

Why is the planetesimal theory no longer accepted today?

The planetesimal theory is not universally accepted though. ... Many people think that around 3.8 billion years ago, many of the planetesimals were thrown into far away regions, such as the Oort cloud or the Kuiper Belt. Other objects collided with other objects after being affected by gas giants.

Who proposed nebular theory?

Solar nebula, gaseous cloud from which, in the so-called nebular hypothesis of the origin of the solar system, the Sun and planets formed by condensation. Swedish philosopher Emanuel Swedenborg in 1734 proposed that the planets formed out of a nebular crust that had surrounded the Sun and then broken apart.

When I bumped the table the coffee in my cup spilled out?

Answer: When one bump on the coffee table with a cup of coffee in hand, some coffee spills out, and Newton's First law of motion can explain this. The first law states that a body stays standstill or stays in the motion unless and until a force is applied to it.

What was widely accepted by the 1660's about the planets?

From the Earth to the Sun

The actual distance between the Earth and the Sun eluded astronomers in the 17th century. By the 1660s, the Copernican heliocentric model was widely accepted and the planets' relative orbits were well known.

What are the two major types of planets?

Planets are generally divided into two groups: the terrestrial and the giant planets. The terrestrial planets are the four inner planets: Mercury, Venus, Earth, and Mars. They are generally small in size (about the size of the Earth) and are predominantly rocky in composition.

Why do Earth rocks have much younger ages than most meteorites?

The Moon formed from material blasted out of the Earth's mantle and crust by the impact of a Mars-size object. ... Why do Earth rocks have much younger ages than most meteorites? Most Earth rocks have been melted and reformed since Earth formed from the solar nebula.

Why is Venus a problem for the nebular hypothesis?

Why is Venus a problem for the nebular hypothesis? Venus rotates backwards and it should rotate according to the nebular hypothesis. How do you think a secular scientist would explain why Uranus rotes on its side using his model? Why do some people cling to their theories in the face of contradictions?

Why did solar nebula heat up as it collapses?

Why did the solar nebula heat up as it collapsed? As the cloud shrank, its gravitational potential energy was converted to kinetic energy and then into thermal shock. ... It flattened as a natural consequence of collisions between particles in the nebula, changing random motions into more orderly ones.

Why is the solar nebula theory considered a theory rather than a hypothesis?

Why is the solar nebula theory considered a theory rather than a hypothesis? It has extensive evidence and explains many observations of different objects.

Why do scientists use meteorites to learn about nebular theory?

As mentioned above, scientists study meteorites for insights into the events that took place surrounding the birth and early evolution of the solar system. They know from astronomical observations that all stars form by gravitational collapse of dense regions in interstellar molecular clouds.

What kind of observation lends supporting evidence to the solar nebula theory group of answer choices?

The observational evidence supporting this scenario include the infrared radiation we've detected from many nebulae where star systems appear to be forming. Also, other stars have flattened, spinning disks. Other support comes from computer simulations.

What's the oldest thing on Earth?

The zircon crystals from Australia's Jack Hills are believed to be the oldest thing ever discovered on Earth. Researchers have dated the crystals to about 4.375 billion years ago, just 165 million years after the Earth formed. The zircons provide insight into what the early conditions on Earth were like.

What is the oldest thing in the universe?

Quasars are some of the oldest, most distant, most massive and brightest objects in the universe. They make up the cores of galaxies where a rapidly spinning supermassive black hole gorges on all the matter that's unable to escape its gravitational grasp.

How old is our galaxy?

Most galaxies are between 10 billion and 13.6 billion years old. Our universe is about 13.8 billion years old, so most galaxies formed when the universe was quite young! Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old.

What is the difference between nebular hypothesis and solar nebula theory?

Answer: 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). ... The widely accepted modern variant of the nebular theory is the solar nebular disk model (SNDM) or solar nebular model.