Search Results

You may use the options below to change your display:
Alter display preferences

The following options can help you tailor your search display:

results per page
Restricted to General Topic: Astronomy
Restricted to Specific Topic: Cosmic Time and Distance
Close your folders

Refine your search


Narrow your results

By Subject:

By Resource Type:

By Course Type:

By Context:
  • (1)
  • (1)
  • (1)
  • (2)
  • (1)

By Collection:


  
Results #1-#2 of 2
sort by: relevance | subject | date | title | author
  
Match Score:
100
Byline:
Publisher: University of Li├Ęge
Post a comment
This description of current research experiments on gravitational lensing contains several color pictures of multiply-imaged quasars along with a list of articles on the subject. It…
  
Match Score:
100
Byline:
Publisher: NASA Glenn Research Center
Post a comment
This NASA site examines propulsion for interstellar travel. The website describes propulsion methods based on current science, on speculative ideas in science, and on science…