Mammoth Cave is now officially longer than 400 miles.
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
Mammoth Cave is now officially longer than 400 miles.
This official announcement is a bit old, as the survey work that brought Mammoth over 400 miles was probably done during the October or December 2012 expeditions.
Update: I contacted some of my caving friends who survey in Mammoth regularly, and they have confirmed that the survey reached 400 miles during the October 2012 expedition.
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
Mammoth Cave is now officially longer than 400 miles.
This official announcement is a bit old, as the survey work that brought Mammoth over 400 miles was probably done during the October or December 2012 expeditions.
Update: I contacted some of my caving friends who survey in Mammoth regularly, and they have confirmed that the survey reached 400 miles during the October 2012 expedition.
Wow! That’s amazing! When I was reading Roger Brucker’s books back in the 80’s, known areas of Mammoth Cave extended to only a fraction of that size.
His were among the most exciting books I’ve ever read, Thanks for sharing this news.
Never been to Mammoth, but I’ve visited Carlsbad Caverns (NM), which is great fun.