Children, even at preschool age, often ask the question: “What is heaven?” And sometimes adults simply cannot fully answer it, although they themselves understand the meaning and essence of the word. Well, let's try to understand this simple term from a scientific point of view, but nevertheless in an understandable language to characterize this substance.
What is the sky in the broad sense of the word?
As every earthman knows, the sky is the same panorama that opens before us daily. It is the airspace, which consists of numerous layers of the atmosphere, different in density. In this space, various physical and chemical phenomena can be observed . Among these, we distinguish the formation of clouds, thunderclouds and snow clouds, lightning, northern lights, rainbows, etc. It is worth noting that on Earth the sky can be night, morning, afternoon and evening. Depending on the time of day, its color and illumination change, which is provided exclusively by the Sun (since the rest of the cosmic bodies are either too far from the Earth, or do not have enough brightness for the necessary lighting).
Physico-astronomical theory of the sky
Now we will consider what the sky is from a more scientific point of view. This space, in fact, is called the visible part of the cosmos, which is observed from a certain astronomical body. In modern science, such concepts as the Earthly sky, Martian, Lunar, etc. are not given as news. In short, being on the surface of every solid cosmic body (Mercury, Venus, Earth and the Moon, Mars, Pluto), you can see the sky. Only on each of these planets will it be excellent, because the atmosphere that colors it in certain tones has significant differences. In turn, depending on the molecular composition of a given atmosphere, various processes are also observed in one or another “sky”. The atmosphere of Mars is filled with metal microscopic compounds, which is why it has a reddish color. On this planet there are sharp temperature changes, frequent meteor showers, as the thickness of the atmosphere allows all this to pass from outer space.
The sky that we see on our planet
A completely different conversation is heaven and earth, that is, the atmospheric shell of our own planet. A large number of protective layers, the presence of oxygen molecules and a sufficiently dense ozone layer provide reliable protection against cosmic adversity. All the phenomena that our sky presents to us are not as destructive as on Mars. That is why meteorites very rarely pass through a dense atmosphere (if they pass, it equates to a catastrophe of world significance), interstellar dust does not reach us, the temperature of which is overwhelming for thousands of Kelvin, we are not afraid of sharp temperature changes, depending on solar activity .
Typical characteristics of the earth's sky
We have already talked about what the sky is from an astronomical point of view, now we’ll try to figure out how it is seen by the inhabitants of various latitudes of our planet. As a rule, a cloudless and clear daytime sky in all regions of the world appears to us in blue colors. The more sunny the day, the more saturated our natural shell of the Earth looks . White light clouds make the sky tone paler, as if the artist spilled white. This is a regional difference, since all clouds are located exclusively locally and quite low above the surface. The color of the sky changes invariably in all parts of the world depending on the time of day. In the morning, at sunrise, and also at sunset, the sky turns pink, purple, yellow, and even green. After that, the night sky acquires a dark blue tone and (if there is no cloudiness) is slightly illuminated by the high beam of stars and the Moon.
Our closest companion is the ever-changing Month.
An interesting fact, but the sky, whose photo was taken at equatorial latitudes at night, differs from the panorama that unfolds over regions close to the poles. It depends on the proximity of all celestial bodies that can be seen with the naked eye to the surface of our planet. First of all, the Moon grows, its glow becomes brighter, all craters and oceans are visible much more clearly. It is also worth noting that it is at the equator that such a phenomenon as the blue or blue moon is much more common than in our latitudes. That is why astronomers prefer to monitor the movement of comic bodies from this position.
What is heaven and what is their essence?
With the advent of scientific terms, religious judgments based on accurate knowledge arose. Since the blue panorama that unfolds before us is endless and majestic, all the representatives of the Christian religion began to call it heaven. Heaven is a marina of bliss, serenity, strength and inspiration. Angels live on them, all souls undergoing reincarnation abide on them.