Astronomy Homework Solutions

Dark Matter

What makes dark matter "dark"? Please provide references as well.

Universe expansion

Why is the universe believed to be expanding? Please provide references as well.

Stars

1. Are the stars uniformly distributed in space? Please include references to support answer.

Molecules

What kinds of evidence supports the belief that molecules of various kinds, including some complex ones, exist in space? Please include references to support answer.

galaxy collisions

Why do galaxies collide if they were all ejected from a point at a constant speed? Please include references to support the answer.

Black Hole

Is it possible to know what takes place inside the event horizon of a black hole? Explain and include references.

Why did ancient people describe stars as people & animals?

Why do you think ancient people took so much time to describe the stars as people and animals? (See attachment for full questions)

Explosion Model for the Formation of Clusters of Galaxies ...

How does the explosion model for the formation of the clusters of galaxies also provide an explanation for the immense voids observed in the universe? (Just need a brief explanation)

Comparing Velocity of Objects Based on Mass; Pendulum

can anyone please show me how to get started on the attached lab questions? Thanks! Part 2 (also attached) Equipment: A length of string, a compact object which can be tied to the string like a metal washer, a tack, a stopwatch or clock, and a meter or yard stick. Procedure: I. Tie your object to the string and ti ...continues

Browse