11 Meticulous Things In Our Universe That Prove How Precious Life Really Is (Part I)
Some things occur by coincidence but it would be a bit foolish to claim such a thing concerning how our planet seems to have been designed to harbor life. The planetary habitability—the measure of a planet’s or natural satellite’s potential to develop and sustain life—of Earth is extremely rare but at the same time most scientists agree it is almost impossible for so many events to be taking place just by mere coincidence or accident. Planetary habitability is largely an extrapolation from the conditions on Earth and the characteristics of the sun and solar system that appear favorable to the flourishing of intelligent life. An absolute requirement for life is an energy source, and the notion of planetary habitability implies that numerous geophysical, geochemical, astrophysical, and other factors and criteria must be met before an astronomical body can support life. By putting together probabilities for each of these features occurring by chance, we can calculate the probability of the existence of a planet like Earth. According to some scientists this probability is one in 1,099, or about 1,023 planets in the universe supporting life. Design or random chance? To be continued next week... Written by Theodoros II
EARTH'S IDEAL DISTANCE FROM THE SUN
Our world orbits the sun at just the right distance. This habitable zone is where water can exist in liquid form; a basic requirement for life. That’s why you will never see any Martian bragging about their oceanfront property on the Red Planet, or a native of Venus being proud of their cool breezes.
THE GRAVITATIONAL PULL OF THE MOON
The moon has its own beneficial effects on our planet as well. Scientists now know that Earth originally had a rotational period of eight hours. Such a rapid rotational period would have resulted in surface wind velocities in excess of five hundred miles per hour. The gravitational pull of the moon over the last four billion years has increased the earth’s rotational period to twenty-four hours.
EARTH'S FLAWLESS ROTATION
Earth’s rotation allows for what appears as the sun rising each morning and, thankfully, setting in the evenings. If it weren’t for this, one side of the world would be unbearably hot and the other would be colder than ice and life wouldn’t be possible anywhere on the planet.
THE MAGIC OF GRAVITY
Even though we take gravity for granted, the truth is that without Earth’s gravity human life wouldn’t exist. To give you an example, a two-hundred-pound man trying to stand on Jupiter—good luck with that—would weigh about 480 pounds and would have to try his very best just to jump more than half an inch.
EARTH'S MAGNETIC FIELD
If Earth did not have a strong and relatively stable magnetic field, we’d all be fried by cosmic rays and solar storms. The bad news is that every 300,000 years the magnetic poles flip, a process that takes thousands of years. Scientists guarantee that we’re overdue for another flip, which means your distant future descendants will need to buy new compasses.
THE LOCATION OF OUR SOLAR SYSTEM
The location of our solar system appears to be another important factor that allows Earth to harbor life. Our solar system is located very far from the center of the galaxy—where there is a great black hole, many stars burn out , and supernovas that kill off life—and between the spiral arms, which puts us far from the supernovas and give us a great view to study and observe the universe.
OUR GALAXY'S SIZE AND TYPE
According to science, our galaxy is in the top one percent of the most massive and luminous galaxies in the universe and is the perfect size to sustain life. Not too large, since in this case the infusion of gas and stars w ould disturb the sun’s orbit and ignite deadly galactic eruptions, and not too small, where the infusion of gas would be insufficient to sustain star formation long enough for life to form. Furthermore, if our galaxy was too elliptical then star formation would cease before sufficient amounts of heavy elements formed for life chemistry. Of course, if it was too irregular, radiation exposure would be way too severe (at times) and life-essential heavy elements would not form at all.
IDEAL VOLCANIC ACTIVITY
Believe it or not but if there was lower volcanic activity on Earth this would produce insufficient amounts of carbon dioxide and water vapor would be returned to the atmosphere. That means soil mineralization would be insufficient for advanced life support. As you understand, if we had way too many volcanoes erupting then advanced life would be destroyed and the ecosystem would be fatally damaged.
JUPITER IS OUR GUARDIAN ANGEL
Jupiter’s size helps shield Earth from many asteroids and comets by drawing this space debris to itself. Also, the presence of Jupiter-like planets in the universe is rare. In other words, Jupiter being where it is makes it like Earth’s guardian angel or something.
THE ELECTRICITY OF OUR PLANET
Many people are killed by lightning every year worldwide. But lightning may be a key to the origin of life. With water, methane, and other chemicals in the atmosphere, lightning can create amino acids and sugars that are the building blocks of life. In 1953 the well-known Miller-Urey experiment raised the possibility that lightning may have been a key to life’s origins.
THE OXYGEN AND CARBON COINCIDENCE
Oxygen is another necessary element for life and is abundant in the universe. Life also needs carbon. So if all carbon atoms were converted to oxygen, you would not have life. On the other hand, if there were no oxygen, you would also not have life. To make a long story short, it looks like someone “played” with the laws of physics so that carbon and oxygen were produced in the right amount to create life on Earth.