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Toba caldera volcano
Large calderas of the world are formed after cataclysmic explosions of volcanoes...
calculating the distance of the horizonIn search of black holes
How to calculate the distance to the horizon?In search of black holes...
the threat of supervolcanoesthe return of sunspots in 2010
The threat of supervolcanoes...Finally the return of sunspots in 2010...
detailed image of Betelgeusematière manquante, énergie noire
The most detailed optical image of Betelgeuse...Non-baryonic dark matter...
 
polar bears endangeredice cores tell us about the past...
Man will he the largest animal on Earth?Ice cores tell us about the past...
Earth's atmosphere from spacearche anticrepuscular
Earth's atmosphere from space...Shadow of the Earth or arch anticrepuscular...
Nuclear fission solar flare of February 15, 2011
Nuclear fusion, natural energy source...The most violent solar eruptions...
fusion of galaxiesNuclear Power
Fusion galaxies and black holes...Nuclear energy or the particularity of uranium...
vernal equinox and autumnalasteroid or comet (Itokawa and hartley 2)
The days and nights equinox...Asteroid or comet?
 
oil refinery
Global energy demand. At the dawn of a revolution, many people will be sacrificed...
neutron Starsthe supervolcanoes that changed life on Earth
Neutron star, billions of tons cm3...Supervolcanoes that changed life on Earth...
DNA carrier of genetic informationeccentricity, obliquity and precession of the Earth
Story of the evolution towards the living...Variation of the eccentricity of the Earth...
the global ecological footprintSpace debris
Global ecological footprint...Exponential increase in space debris...
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