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Articles − Astronomy and nature

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radioactivitysolar prominences 2010
Radioactivity, natural
and artificial...		Coronal mass
ejections (CME)...
Fratals objectsl'eau de la planète
Fractals objects...Water on the planet, an
element extraterrestrial...
Witch Head Nebula or IC 2118International Space Station (ISS)
Witch Head Nebula
or IC 2118...		ISS in low Earth orbit
at 340 km altitude...
Lagrange point Chilean earthquake and movements of the Earth
Lagrange points,
L1 L2 L3 L4 L5...		And it turns
majestically...
Observable universecomet holmes
The observable universe,
a notion not intuitive...		The periodic passage
of comets...
 
habitable zone or ecosphereToumai skull fossil
The habitable zones of
stars or ecosphere...		Toumai our ancestor,
old 7 million years...
Where does the water from the Earth?Michael Faraday
Where does the water
of the planet Earth?		Faraday reasoned
like Einstein...
spacetime of Einstein
Another image of the universe, space and time together, the undulations of gravity travel at exactly the speed of light, 299 792 m/s...
développement durablethe Pleiades or seven sisters
Sustainable development,
the living observe us...		500 stars of
the Pleiades...
 
Superb annular eclipse of January 15, 2010axial tilt or obliquity of the Earth
Superb annular eclipse
January 15, 2010...		Obliquity cause
the seasons...
oceanic trenches
If the abyssal plains are at 5000 m depth, large oceanic trenches dive even deeper under the sea level, between 9000 and 11000 meters...
life evolves, sheltered from the glaciationsbrightness of planets and stars
Life evolves, sheltered
from glaciations...		Star or planet,
brightness difference...
cosmics raysRosette nebula or ngc2237
Cosmic rays and
mutation of species...		Sculpture designed
by the Rosetta...
   
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