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Interstellar travel: how to spot a ‘starman’ going by

Massive objects moving at near light speeds do not occur naturally in the universe as we know it. If we detect such objects it is a reasonable to assume they are artificial artifacts from advanced intelligent life. This according to Garcia-Escartin and Chamorro-Posada, authors of a recent paper, is a low-cost, sure-fire way of searching […]


The origins of life: made on Earth or not?

Two recent discoveries have strengthened the hypothesis that life on earth may have originated from organic material seeded by asteroids and meteorites.  The first comes from a new analysis of 12 meteorites and the second of dust from an asteroid.  The case for this has been building since the 1960s when scientists first started analysing […]