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

Author Question: Describe the impact the discovery of extrasolar planets h as had on the question of life on other ... (Read 13 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
Describe the impact the discovery of extrasolar planets h as had on the question of life on other worlds.
 
  What will be an ideal response?

Question 2

What role does hydrogen play in spectral classification?
 
  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

ApricotDream

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

We do not yet know how common small, rocky Earth-like planets are around other stars, or what are the characteristics of their orbits. This is the primary motivation for new space-based missions. We can speculate, however, on the possibility of life on moons around the Jupiter-like planets in close-in orbits around other stars, much as we speculate on life on, e.g. Europa or Titan. These discoveries have led to the study of life in extreme environments on Earth.

Answer to Question 2

Its spectral lines are most obvious in mid-temperature stars and least obvious in both very hot and very cool stars.




cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Gracias!

 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

For a complete list of videos, visit our video library