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Time travelers…..is there anybody out there?

Astrophysicists Robert Nemiroff and Teresa Wilson have undertaken what they consider to be the most sensitive and comprehensive search yet for time travelers from the future. The negative results they reported indicate that time travelers from the future may not amongst us. Time travel has captured the public imagination for much of the past century.  […]

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Gaia: is there scientific evidence for this intriguing, inspiring, infuriating hypothesis?

Just on 30 years ago I came across an intriguing book, the then relatively unknown Gaia: A new look at life on Earth (OUP 1979) by an ‘independent scientist’, J.E. Lovelock. My earliest impression of it may seem surprising to many people now. I was infuriated. I was infuriated not by Lovelock’s hypothesis per se, […]

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