Site Search:
 
Dave's ESL Cafe's Student Discussion Forums Forum Index Dave's ESL Cafe's Student Discussion Forums
"The Internet's Meeting Place for ESL/EFL Students and Teachers from Around the World!"
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

SUPER NOVA !!!

 
Post new topic   Reply to topic    Dave's ESL Cafe's Student Discussion Forums Forum Index -> Opinions
View previous topic :: View next topic  
Author Message
nutshaman



Joined: 11 Nov 2003
Posts: 11

PostPosted: Fri Nov 28, 2003 3:05 am    Post subject: SUPER NOVA !!! Reply with quote

How could an exploding star found light years from where we are stop dinosaurs from giving birth and change the face of planet Earth ?
The pattern of stars in the night sky usually looks the same from night to night and from year to year. But every century or so, a new star appears suddenly one night and then fades back to invisibility over the next few months. Such a star is called a "nova" . As astronomers learned about the true nature of stars, they realized that novae were exploding stars. Some novae were fairly bright--reaching a few hundred thousand times the brightness of the Sun. Other novae were incredibly bright--reaching several billion times the brightness of the Sun! These amazingly bright novae were renamed "super"-novae.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Dave's ESL Cafe's Student Discussion Forums Forum Index -> Opinions All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Dave's ESL Cafe is maintained by the one and only Dave Sperling.
Banner Advertising | Bookstore / Alta Books | FAQs | Articles | Interview with Dave
Copyright © 1995-2011 Dave's ESL Cafe | All Rights Reserved | Contact Dave's ESL Cafe | Site Map

Teachers College, Columbia University: Train to Teach English Here or Abroad
SIT
Powered by phpBB © 2001, 2002 phpBB Group