This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are Earths and super-Earths in the habitable zones of their stars of special interest? What ... (Read 112 times)

kaid0807

  • Hero Member
  • *****
  • Posts: 515
on: Jul 27, 2018
Why are Earths and super-Earths in the habitable zones of their stars of special interest?
 
  What will be an ideal response?

Question 2

What is peculiar about Sirius based on historical records?
 
  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

lcapri7

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 27, 2018
Answer to Question 1

One of the major motivations for searching for exoplanets has been to find planets that harbor life. Life-as-we-know-it requires liquid water and planets in the habitable zones could have liquid water. Adding that to rocky or terrestrial planets, there is hope that life would have developed the same way on these planets.

Answer to Question 2

Records from 100 B.C. to 200 A.D. indicate that Sirius was red in color; records since that time indicate that Sirius is blue-white. Stellar evolution models do not predict that sort of color change.


kaid0807

  • Hero Member
  • *****
  • Posts: 515
Reply #2 on: Jul 27, 2018
TY


lcapri7

  • Sr. Member
  • ****
  • Posts: 350
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Super Mario, Flying Fish Super Mario, Flying Fish
Binary Stars Binary Stars
Advantages and Disadvantages of Convection super-heater Advantages and Disadvantages of Convection super-heater
How to solve equations that contain sine using special triangles (Part 2) How to solve equations that contain sine using special triangles (Part 2)
How to calculate present value using the compound interest formula (Question 1) How to calculate present value using the compound interest formula (Question 1)
A non-interest-bearing five-year note for $54600.00 issued May 1, 2015, is discounted April 1, ... A non-interest-bearing five-year note for $54600.00 issued May 1, 2015, is discounted April 1, ...
Video: Ear Virtual Tour Animation

For a complete list of videos, visit our video library