The Earth glides majestically in an ideal orbit, leaving no trace of the formidable force that drives it. We fall into infinity in ever-changing spirals and we will never return to where we are today. Day and night as the sky unfolds a changing panorama above our heads, our Earth, this little stardust, turns on itself without worrying about tomorrow.
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Planetary Alignments: A Fascinating but Relative Phenomenon 
All Deserts of the World 
Earth's Paleoclimates and Carbon Dioxide 
Three Gorges Dam and Day Length 
International Date Line 
When does spring start? 
Reversal of the Earth's magnetic field over time 
Simulator, the revolution of the planets 
Earth's geological time 
Ocean water from elsewhere 
How to calculate the distance from the horizon? 
Declination and right ascension in the celestial sphere 
Inversions of the Earth's Magnetic Field 
South Atlantic Anomaly (SAA) 
Classification
of tornadoes 
Life-giving radioactivity 
The great ocean trenches 
Measure the passage of time 
And if we put the Earth in an aquarium 
Earth in crisis, the end of a stable world 
Earth
And
she spins majestically 
Water reservoirs on Earth 
How much is the sea level rising? 
Planetary
Darkening 
The life of the Earth perceived by man 
Effects
of Earth's Eccentricity 
The explanation of the Little Ice Age 
The
orbital waltz of GPS satellites 
Astronomy and Anxiety of the Past 
Van Allen Radiation Belt 
Axis of rotation of the planets or obliquity 
The disturbing cloud cover of the Earth 
Anthropocentric and geocentric vision 
The Galilean
Cut 
What is the pendulum fixed relative to? 
Problem of longitude at sea 
World population, still gallopingin 2008 
Global warming 
The oldest image of the Earth 
Life evolves in the shelter of glaciations 
Impact theory at the origin of the Moon 
What is an anti-twilight arch? 
Earth's Obliquity and Variations in Its Axis of Rotation 
Liquid water, chemical reaction accelerator 
The aurora and its rays of light 
The new definition of the astronomical unit 
Lagrange points L1 L2 L3 L4 L5 
Planet
water, extraterrestrial element 
Simulator, the round of near-Earth cruisers 
Satellites that measure underwater relief 
Hadean's
Hell 
The First Free Flight of an Astronaut in Space