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 82 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?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
How to solve equations that contain cosine using special triangles (Part 1) How to solve equations that contain cosine using special triangles (Part 1)
How to calculate simple interest (Part 1) How to calculate simple interest (Part 1)
The Zones of Injury Commonly Caused by a Thermal Burn The Zones of Injury Commonly Caused by a Thermal Burn
Determine the nominal annual rate of interest of the following ordinary general annuity. Determine the nominal annual rate of interest of the following ordinary general annuity.
Video: DNA Sequences - Dideoxy Sequencing

For a complete list of videos, visit our video library