- This Week in History (25 May to 31 May) http://en.wikipedia.org/wiki/Halley%27s_Comet 5 comments history
- 50 years until Halley's Comet is back in view http://en.wikipedia.org/wiki/halley%27s_comet#apparitions 17 comments space
Linking pages
- Halley's Eclipse: a coup for Newtonian prediction and the selling of science | Science | The Guardian http://www.theguardian.com/science/the-h-word/2015/may/03/halleys-eclipse-newtonian-selling-science-history 1 comment
- The Difference Between an Asteroid and a Comet http://www.todayifoundout.com/index.php/2011/01/the-difference-between-an-asteroid-and-a-comet/ 0 comments
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