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.
Why is the nebular theory not widely accepted?
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.
Why does a nebula heat up?
Nebulae are made of dust and gases—mostly hydrogen and helium. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
Where did solar nebula come from?
Solar Nebula. Our solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud. The cloud contracted under its own gravity and our proto-Sun formed in the hot dense center. The remainder of the cloud formed a swirling disk called of the solar nebula.
What might have made the original solar nebula begin to contract?
Larger planets should form closer to their star, where there is more debris. What might have made the original solar nebula begin to contract? The denser planets lie closer to the Sun.
What is the difference between nebular and solar nebular theory?
Answer. 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.
Is solar nebula contracted?
What happens when a solar nebula contracts? It heats up, spins faster, flattens out. What is true about solar system densities? the denser planets lie closer to the Sun.