For astronomers, attempting to understand the life
cycles of planetary systems using existing examples is like trying to learn how people grow from babies to children to teenagers, by only studying adults.
Not exact matches
Nitrogen has been wrested from the sky, turned into plant food and, ultimately, more people — a doubling
of the amount
of nitrogen
cycling through
planetary systems.
The Rencontres du Vietnam initiated in 2014 a
cycle of yearly conferences on
planetary science, alternatively focusing on exoplanets, Solar
system, or exobiology.
Successive breakthroughs in the natural sciences gave rise to a
system of graphical schema to represent the natural order — whether the
planetary orbits around the sun, the life
cycle of plants, or the double - helix structure
of DNA.
As opposed to the longer period
cycles of synod conjunction
of the outer planets, which jointly swings the sun and the inner
planetary system, around the SSB which beats the two long period set together, the inner planets at a rate
of once every 17.95 Years and the outer planets periodicity
of ~ 179.5 years.
Dr Lenton (who is also one
of the creators
of the
planetary - boundaries concept) and Dr Watson suggest that energy might be used to change the hydrologic
cycle with massive desalination equipment, or to speed up the carbon
cycle by drawing down atmospheric carbon dioxide, or to drive new recycling
systems devoted to tin and copper and the many other metals as vital to industrial life as carbon and nitrogen are to living tissue.
So they could begin to make an estimate
of the rate at which dissolved organic carbon is re-entering the
planetary system, and perhaps augmenting the carbon
cycle.
The carbon
cycle underwrites all life: plants and microbes withdraw carbon from the atmosphere and some
of it gets stored in the soils, preserved as peat, or locked away as rock, or frozen as ice to be returned to the
planetary system in all sorts
of ways,
Role
of the hydrological
cycle in regulating the
planetary climate
system in a simple nonlinear dynamical model.