One aspect of Creation that has always perplexed me is why God didn't create the sun before the Earth. How do you create anything without the sun first? Yes God could have created the necessary warmth for things to exist but why not just create the sun first?
Genesis 1:12 KJV: "And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind: and God saw that it was good."
The temperature in outer space is -270°C or -454°F. Something none of us can even fathom.
Why create this world in this order? Why not just create the sun first? Well then I thought about if that was the case how long would the sun take to heat up a frigid, barren wasteland like the earth?
I asked AI as it's pretty good with science.
******************
If the Sun were created first, and Earth was a cold, "formless and void" body as described in Genesis 1:2, it would take a significant amount of time for the Sun's warmth to heat the Earth to "normal" (meaning a temperature range conducive to liquid water and life as we know it).
Here's a breakdown of the factors and timescale:
- Light Travel Time: The initial light and heat from the Sun would reach Earth very quickly – about 8 minutes and 20 seconds at the speed of light. However, this is just for the energy to arrive; it's not enough to warm the planet.
- Absorption and Reradiation: Once the solar radiation (including visible light and infrared energy) reaches Earth, it needs to be absorbed by the planet's surface and atmosphere. Absorbed radiation is then transformed into heat. The Earth then re-radiates this heat back into space as infrared radiation.
- Achieving Radiative Equilibrium:A planet's temperature stabilizes when the amount of incoming solar energy absorbed is balanced by the amount of heat it radiates back into space. This state is called radiative equilibrium. The time it takes for a planet to reach this equilibrium depends on several factors:
- Initial Temperature: If Earth started extremely cold, it would take longer.
- Atmosphere: The presence and composition of an atmosphere, especially one with greenhouse gases, would significantly affect warming. A thick atmosphere acts like a blanket, trapping heat. Without an atmosphere, temperature swings would be extreme between day and night.
- Surface Composition: Darker surfaces absorb more heat than lighter ones.
- Thermal Inertia: Different materials heat up and cool down at different rates. Water, for example, has a high thermal capacity and takes longer to heat up and cool down than land.
How long would it take?
- Initial Surface Warming: The very top layer of the Earth's surface would begin to warm almost immediately upon receiving sunlight. You'd feel the warmth of the sun within minutes or hours.
- Atmospheric Warming and Circulation: As the surface warms, it heats the atmosphere above it through conduction and convection. This would lead to the development of winds and weather patterns, which help distribute heat around the planet. This process would take days to weeks to establish significant global circulation.
- Ocean Warming: The oceans, being massive bodies of water, would take much longer to warm up. Deep ocean currents and the sheer volume of water mean that full oceanic warming to a stable temperature could take hundreds to thousands of years, if not longer.
- Geological Time Scales: If Earth started as a completely frozen, inert body, the processes that led to its current "normal" temperature, including the outgassing of volatiles to form the atmosphere and oceans, took millions to billions of years.
In the context of Genesis 1:
The biblical account describes God bringing forth light on Day One, and then separating the light from the darkness. The sun, moon, and stars are created on Day Four. This sequence implies that a form of light and a warming process occurred before the direct action of the sun on Earth as we know it. The idea of a pre-existing or diffuse light that warmed the planet prior to the sun's full appointment on Day Four bypasses the issue of Earth being frozen for an extended period.
In summary, while the initial light from the Sun reaches Earth in about 8 minutes, the process of heating the Earth to a stable, "normal" temperature, especially including its vast oceans, would be a gradual process taking from
weeks for surface and atmospheric effects to thousands or even millions of years for the entire planet to stabilize depending on its initial conditions and the development of its atmosphere and oceans.