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11 Meticulous Things In Our Universe That Prove How Precious Life Really Is (Part II)

And the journey continues from where we left it last week. So, what do you think so far? Is it possible for so many events taking place just by mere coincidence or accident? If we didn't convince you with Part I, let's hope that we can convince you with Part II.
Written by Theodoros II

THE MOON'S EXACT SAME SIZE AND DISTANCE FROM EARTH

Last week we saw how the gravitational pull of the moon helps earth to harbour life. If you, however, thought that this is the only significant role our moon has, then you're sadly mistaken. The moon is four hundred times smaller than the sun; it is also four hundred times closer to Earth than the sun and as a result covers the sun exactly. This makes Earth the only place in the solar system from which to observe a solar eclipse. Solar eclipses have helped science verify some laws of physics, including Einstein’s theory of relativity, which predicted that light would be curved by a gravitational field, and that the sun’s field is the only one in the solar system strong enough to detect the curving.

TEMPERATE ZONES

Some life has adapted to the most frigid places on Earth—including Antarctica, where the planet’s record low was set at minus 128.6 degrees Fahrenheit, or minus 89.2 degrees Celsius—and its hottest deserts. But life achieves its greatest diversity in more temperate climes, namely the tropics, where moderation rules.

IDEAL SEISMIC ACTIVITY

Just like with the ideal volcanic activity in our planet, things wouldn't work properly if there wasn't an ideal seismic activity either. If we suppose that there was too much distribution in the southern hemisphere then sea salt aerosols would be insufficient to stabilize surface temperature and the water cycle. As a result, increased seasonal differences would limit the available habitats for advanced land life. 

THE FREQUENCY OF ICE AGES

It might sound unbelievable but scientists assure us that if there were no ice ages at all or even fewer than have occurred then Earth’s surface would lack fertile valleys essential for life and mineral concentrations would be insufficient for advanced life as well. Needless to say, if there were a greater frequency of them then Earth would experience freezing temperatures that wouldn’t allow for any form of intelligent life.  

EARTH'S ATMOSPHERIC PRESSURE

If the atmospheric pressure were smaller, liquid water would evaporate too easily and condense too infrequently to support life. If it were greater, there would be inadequate liquid water evaporation to support life, and insufficient sunlight and UV radiation would reach Earth’s surface. 

IDEAL IRON QUANTITY IN THE OCEAN AND SOIL

Once again, there are some things we take for granted which we shouldn’t. If for some reason the iron quantity in the ocean and soil were greater than it is now, iron poisoning would destroy advanced life. If it were less, then food to support advanced life would be insufficient. If it were very small like other elements no life would be possible. 

H3+ PRODUCTION

The trihydrogen cation, also known as protonated molecular hydrogen or H+3, is one of the most abundant ions in the universe. It is stable in the interstellar medium (ISM) due to the low temperature and low density of interstellar space. The role that H+3 plays in the gas-phase chemistry of the ISM is unequalled by any other ion. If, however, it were less than it is now, simple molecules essential to planet formation and life chemistry would never form. If it were too great, planets would form at the wrong time and position in space for life. 

AXIAL TILT

In astronomy, axial tilt is the angle between a planet’s rotational axis at its north pole and a line perpendicular to the planet’s orbital plane. It is also called axial inclination or obliquity. Earth’s axial tilt causes the seasons. If, however, it were greater or less as it is on most other planets in our solar system, then surface temperature differences would be too great to sustain diverse life-forms, including human life. 

THE QUANTITY OF SULFUR IN EARTH'S CORE

Research in 2015 confirmed that Earth’s core contains very large amounts of sulfur, estimated to be up to 8.5 x 1018 tons. This is about ten times the amount of sulfur elsewhere on the planet, and to compare, is around ten percent of the moon’s total mass. What does this mean? Well, if there was a larger amount of sulfur in Earth’s core then a solid inner core would never form, disrupting the magnetic field and making life on Earth impossible. If it were smaller than it is currently, solid inner core formation would begin a little too soon, causing it to grow too rapidly and extensively, also disrupting the magnetic field.

TROPOSPHERIC OZONE QUANTITY

In this case, we got another solid proof that nothing occurred through sheer coincidence in composing our world. See, if the tropospheric ozone quantity was greater, then advanced animals would experience respiratory failure, crop yields would be inadequate for advanced life, and ozone-sensitive species would be unable to survive. If it were smaller, biochemical smog would hinder or destroy most life. 

OUR UNIQUE POSITION IN SPACE

Last but not least, we should take into account our position in the vast space. Earth doesn’t exist in a vacuum. The space in our solar system is dotted with asteroids and comets, dust and traces of gas. Even now, small space rocks rain down on Earth daily. Big ones slam into the planet often enough to keep NASA on constant lookout. And in the early years of the planet’s formation, giant collisions with comets and asteroids brought water and other important chemicals to the planet, making the origins of life possible.

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