Mercury Magazine Contents
Vol. 30 No. 4
July/August 2001

Page	Article
13	When Galaxies Collide, Charles Liu Though galaxies may appear isolated and serene, they frequently swoop past one another, crash into their neighbors, and transform each other in close encounters.
28	The Star-Pyramid Connection, Govert Schilling A new theory suggests that the ancient Egyptians used two bright stars to find true north. If so, the great pyramids are younger than had been previously thought.
32	Advanced Adventures at Kitt Peak, Steven W. White A Kitt Peak program for amateur astronomers brings out a diverse assortment of visitors.
	Asteroid Moons
	Departments
4	Editorial, James C. White, II The Voyage Continues
5	Society Scope
7	Echoes of the Past, Katherine Bracher Novae and Variable Stars
8	Focus on Education, Jeff Lockwood Hey Look, There's Plants on Mars!
9	Armchair Astrophysics, Christopher Wanjek More Hidden Black Hole Dangers
10	Research Notebook, Christopher J. Conselice The Sun: The Origin of Astrophysics
11	Observer’s Page, John Shibley Surveying Our Home Galaxy
12	Annals of Astronomy, Clifford J. Cunningham Binary Asteroids
C1	Sky Map and Sky Talk, Richard Talcott
40	Book Review, Michael Carroll Mars: The Lure of the Red Planet
41	Works of Note New books that may be of interest to you

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