Top Posters
Since Sunday
1
New Topic  
hussainizzle hussainizzle
wrote...
Posts: 140
Rep: 0 0
4 months ago

Suppose that SETI researchers discovered a radio signal coming from a star in the direction of the centre of the Milky Way that was about 10% closer to the centre than the Sun. If humans sent a reply to this signal immediately, and the aliens replied when they got our message, how long would it take before the alien reply reached Earth?



a few years



several decades



thousands of years



a few hundred years

Textbook 
ASTRO

ASTRO


Edition: 3rd
Authors:
Read 67 times
1 Reply
Replies
Answer verified by a subject expert
inhibitor128inhibitor128
wrote...
Posts: 136
Rep: 0 0
4 months ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

hussainizzle Author
wrote...

4 months ago
this is exactly what I needed
wrote...

Yesterday
Smart ... Thanks!
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  769 People Browsing
Related Images
  
 1011
  
 377
  
 319
Your Opinion
Who will win the 2024 president election?
Votes: 119
Closes: November 4

Previous poll results: Who's your favorite biologist?