Top Posters
Since Sunday
j
4
m
4
n
3
m
3
R
3
V
3
e
3
w
3
j
3
a
3
a
3
h
3
Home Q & A Board Science-Related Homework Help Physics Astronomy
New Topic  
hermiz hermiz
wrote...
Go to Answer
Posts: 569
Rep: 0 0
6 years ago
Given that there are several hundred billion stars in the Milky Way Galaxy and preliminary data from exoplanet studies suggest that as many as one in five star systems may have one or more habitable planets, then a reasonable estimate for the number of habitable planets could be about
A) 100 billion or more
B) 1 billion or more
C) 100 million or more
D) 10 million or more
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
Read 77 times
1 Reply
Life in the Universe, 4/E (Bennett, Shostak)
Replies
Answer verified by a subject expert
19Clyde19Clyde
wrote...
#1
Top Poster
Posts: 584
Rep: 11 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

hermiz Author
wrote...

6 years ago
This site is awesome
jodie1
wrote...

Yesterday
Correct Slight Smile TY
bkrandy
wrote...

2 hours ago
You make an excellent tutor!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  879 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1619
  
 336
  
 374
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 405
Previous poll results: Who will win the 2024 president election?