Breathtaking view of the central peak of Tycho Crater

Chronological Encyclopedia of Discoveries in Space cover

After being in print for twenty years, the Chronological Encyclopedia of Discoveries in Space, covering everything that was learned on every single space mission in the 20th century, has finally gone out of print.

I presently have my last four hardback copies available for sale. The book sold new for about $90. To get your own autographed copy of this now rare collector's item, please send a $120 check (which includes shipping) payable to Robert Zimmerman to

Behind The Black, c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652

"Useful to space buffs and generalists, comprehensive but readable, Bob Zimmerman's Encyclopedia belongs front and center on everyone's bookshelf." -- Mike Collins, Apollo 11 astronaut


"The Chronological Encylopedia of Discoveries in Space is no passionless compendium of information. Robert Zimmerman's fact-filled reports, which cover virtually every spacecraft or probe to have ventured into the heavens, relate the scientific and technical adventure of space exploration enthusiastically and with authority." -- American Scientist

Another astonishing space photograph, this time from lunar orbit, taken by Lunar Reconnaissance Orbiter on June 11, 2011.

The image looks down at the central peak of Tycho crater, with enough detail to make out individual boulders at the summit. Go the link to see some closeups.

Central peak of Tycho crater


One comment

  • David K. Williams

    Hey Bob!

    Do you know of any web site that has a map of the relative positions of all of our current space probes with respect to our solar system?



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