Science Frontiers ONLINE No. 21: May-Jun 1982

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Archaeology

• Strange Megalithic Monuments in the Central Sahara
• The Hueyatlaco Dilemma
• More on Those Chinese Anchors in California Waters

Astronomy

• The Earth's Other Moons
• Flattened Sun Means Trouble for Einstein
• Natural Lasers in the Terrestrial and Martian Skies?
• Magnetic Tune Played on Saturn's Rings

Biology

• Don't Build Von Neumann Machines
• Artificial Panspermia on the Moon

Geology

• Bull's Eye Pattern of Magnetic Anomalies
• What's Ok in the Mediterranean is Verboten in the Atlantic and the Pacific

Geophysics

• Anomalous Sky Flash

Psychology

• Oh Magic, Thy Name is Psi