This topic contains a solution. Click here to go to the answer

Author Question: Briefly describe our Galaxy. What will be an ideal response? ... (Read 34 times)

michelleunicorn

  • Hero Member
  • *****
  • Posts: 565
Briefly describe our Galaxy.
 
  What will be an ideal response?

Question 2

Describe spiral arms.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lindahyatt42

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

A galaxy is a great cloud of stars, gas, and dust bound together by the combined gravity of all the matter. In the night sky, you see our Galaxy from the inside as a great, cloudy band of stars ringing the sky as the Milky Way, and our Galaxy is called the Milky Way Galaxy. Astronomers use evidence to guide their explanations as they envision what our Galaxy looks like. Artists can then use those scientific descriptions to create a painting. Our Sun would be invisible in such a picture, but if you could see it, you would find it about two-thirds of the way from the center to the edge.

Answer to Question 2

Our Galaxy contains more than 100 billion stars, and, like many others, has graceful spiral arms winding outward through the disk. Spiral arms are long spiral patterns of bright stars, star clusters, gas, and dust. Stars are born in great clouds of gas and dust as they pass through the spiral arms.




michelleunicorn

  • Member
  • Posts: 565
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

For a complete list of videos, visit our video library