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Astrobiology Magazine

Le fonti da cui sono tratti gli articoli inseriti nella sezione Documenti di Elettroni.

Fantastic Voyage
3 Nov 2009 - 18:12 | Richard Corfield

Twenty years ago, Voyager 2 left Neptune behind. The robotic spacecraft had taken advantage of a rare alignment of the outer planets that enabled it to visit Jupiter, Saturn, Uranus and Neptune in a single shot.

Zinc and UV Zapped Life into Being?
3 Set 2009 - 22:00 | Anuradha K. Herath

A new model for the origin of life says zinc may have played a vital role. If true, then the Sun’s UV radiation may have provided the energy necessary for life to arise.

The Miller-Urey experiment, conducted by chemists Stanley Miller and Harold Urey in 1953, is the classic experiment on the origin of life. It established that the early Earth atmosphere, as they pictured it, was capable of producing amino acids, the building blocks of life, from inorganic substances.

Death Rays from Space
27 Ago 2009 - 19:49 | Michael Schirber

Cosmic rays pour down on Earth like a constant rain. We don’t much notice these high-energy particles, but they may have played a role in the evolution of life on our planet.