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Astronomy page 5
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Radioactivity, natural and artificial...
Coronal mass ejections (CME)...
Fractals objects...
Water on the planet, an element extraterrestrial...
Witch Head Nebula or IC 2118...
ISS in low Earth orbit at 415 km altitude...
Lagrange points, L1 L2 L3 L4 L5...
And it turns majestically...
The observable universe, a notion not intuitive...
The periodic passage of comets...
The habitable zones of stars or ecosphere...
Toumai our ancestor, old 7 million years...
Where does the water of the planet Earth?
Faraday reasoned like Einstein...
Another image of the universe, space and time together, the undulations of gravity travel...
Sustainable development, the living observe us...
500 stars of the Pleiades...
Superb annular eclipse January 15, 2010...
Obliquity cause the seasons...
If the abyssal plains are at 5000 m depth, large oceanic trenches dive even deeper under...
Life evolves, sheltered from glaciations...
Star or planet, brightness difference...
Cosmic rays and mutation of species...
Sculpture designed by the Rosetta...
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