Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

In the 19th century, astronomers believed that solar systems formed in nebular clouds throughout the universe. But 20th century scientists rejected that idea, arguing that our solar system was an ...

Later astronomers abandoned the nebular hypothesis. They found two things wrong with it: 1) it was unlikely that the rings would gather into planets; 2) the “angular momentum” was wrong.

Lockyer, J., On the Nebular Hypothesis. Full text is unavailable for this digitized archive article. Subscribers may view the full text of this article in its original form through TimesMachine.

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Nature - The Nebular Hypothesis and Modern Cosmogony: being the Halley Lecture delivered on May 23, 1922 Skip to main content Thank you for visiting nature.com.

On a long-exposure plate Mt. Wilson Observatory's Edwin Powell Hubble lately found a streak of light which was subsequently identified by other telescope men as an asteroid, one of some 1,400 ...

THE literature of geology has grown so immense that no man can be familiar with all of it, particularly when it refers to another continent than one's own, yet it comes as a surprise to a Canadian ...