The discovery of extrasolar planets has provided strong validation for the nebular theory, but it also forced scientists to recognize that the theory was incomplete. Which idea was added to the theory after the discovery that some massive planets orbit very close to their stars?

Planets can migrate inward or outward from the orbits on which they originally formed

Explanation:

The most widely accepted theory of planetary formation, known as the nebular hypothesis, maintains that 3.2 billion years ago, the Solar System formed from the gravitational collapse of a giant molecular cloud which was light years across. Several stars, including the Sun, formed within the collapsing cloud. The theory became incomplete because scientists found that the planets could move from the orbit where they were originally formed.

the effect that the korean war had on the domestic politics in the united states was that it undermined the popularity of president truman and dwight eisenhower win the presidential election of 1952 hope i : d

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks