ON THE COVER:

At 2,750 meters in the Celebes Sea: an odd transparent sea cucumber Enypniastes, creeping forward on its many tentacles at about 2 cm per minute, while sweeping detritus-rich sediment into its mouth.

Photo courtesy of Larry
Madin, Woods Hole
Oceanographic Institution;
cover design by Alan Yue.

Purchase this issue for $5

NASA

THE COSMIC RAY PROJECT
Kesha Rogers's Victory Signals
Rebirth of a Mars Colonization Policy
Sky Shields
What will continuous 1-g acceleration of
manned spacecraft to Mars tell us of the
hidden link of life on Earth to the broader
cosmos?

Towards a New Periodic Table of
Cosmic Radiation
Peter Martinson
True knowledge comes from the human
mind, not sense perceptions, and it is this
creative process that will lead us to an
understanding of cosmic radiation and
life processes.

ONWARD TO MARS
The Triumph of the Weak Forces
Oyang Teng
Meeting the challenges of a manned
Moon-Mars mission will open the entire
electromagnetic spectrum for human
use, redefining cognitive science for
the next century.

IN MEMORIAM
Edwin E. Kintner (1920-2010)
A Champion of Fusion and Fission
Steven O. Dean

SPECIAL REPORT
The Overpopulation Fear
Behind the Ban on DDT
Donald Roberts and Richard Tren
Excerpts from their new book,
The Excellent Powder: DDT's
Political and Scientific History.

ASTRONOMY
Reconstructing the Magnifying
Mirror of Archimedes
Charles E. Hughes

A MODERN ARCHIMEDES MIRROR
Italian Town Makes Good Use
of Solar Mirror
Rick Sanders

EDITORIAL
The Nuclear Option Against
British Sabotage in Our Gulf
Laurence Hecht

LETTERS

NEWS BRIEFS

BOOKS
The Excellent Powder: DDT's
Political and Scientific History
by Donald Roberts and Richard
Tren
Reviewed by Marjorie Mazel Hecht

Water: The Epic Struggle for
Wealth, Power, and Civilization
by Steven Solomon
Reviewed by Glenn Mesaros

GLOBAL WARMING UPDATE
Compiled by Gregory Murphy

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