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One day, the Voyager spacecraft captured an actual image of Earth 6 billion kilometers away. Carl Sagan, the American astronomer, said that this tiny dot was the globe.
At this point, everyone you love, everyone you know, everyone you’ve heard of, everyone is there all the time. He added that all of our joys and sufferings, thousands of confident beliefs, ideologies and economic doctrines, every sniper or changer, every hero or coward, every creator or destroyer of a civilization, every king or farmer , every loving young man and daughter, every mother and father, every promising child, every corrupt politician Every shining star of art, every supreme ruler, every saint or sinner in the history of the human race … has lived here. He explained that this point is all we have, over 7 billion people live on a speck of dust in a universe whose end we do not realize, all of our problems, aspirations, dreams, no matter how big- they, collapse with shame when we know this truth, how few are we ?! And the words of “Sagan” are confirmed by information well known to the scientific community which says:
The age of the universe is 13.7 billion years.
The number of galaxies is 220 billion.
The number of stars in our galaxy is 100 to 400 billion.
The Earth is 4.5 billion years old.
A study published in 2009 showed that one in 5 sun-like stars in the Milky Way galaxy revolves around an Earth-sized planet at a distance suitable for the existence of water. a vital part of life.
The analysis, based on 3 years of data collected by the US Aerospace and Space Administration’s (NASA) “Kepler” space telescope, indicated that the galaxy is home to ten billion potentially habitable worlds.
The number is steadily increasing if the census also includes the planets orbiting the cooler red dwarf stars, which are the most common stars in the galaxy.
“Planets seem to be the rule, not the exception,” said Eric Pettigura, who led the study and is a graduate student in astronomy at the University of California, Berkeley.
Pettigura wrote his own electronic program to analyze the results of the space telescope and discovered that 10 planets with a diameter ranging from two to twice the diameter of the Earth revolve around the stars at distances appropriate for the presence of water under liquid form on the surface.
Extrapolating Kepler’s observations over a 34-month period, the researcher and his colleagues found that 22% of the 50 billion sun-like stars in the galaxy are believed to orbit Earth-sized planets at a distance suitable for water.
In the same context, scientist Mario Perez of the “Kepler” Telescope team said that means “we may not be alone” as the four-year data collection process shows the possibility of the existence of other planets similar to Earth.
NASA has said that many new potentially habitable planets revolve around stars the size of the sun.
This is confirmed by the estimates of astronomers that there are approximately “6 billion” Earth-like planets. In our galaxy alone, there might be life on its surface, and it might be “able” to accommodate life.
We know that the “Milky Way” has nearly “400” billion stars.
Under the title “Cosmic Bomb”, its space cosmologist, engineer “Noha Salah”, who is of Egyptian origin, wrote: Many scientists who search for the secrets of space and the universe around us are came from Einstein, Hubble and Lumeter, who interpreted the theories of the universe on scientific grounds, namely that the universe was a Huge mass, then it exploded and its parts were scattered in the vast vast space, forming planets, stars, galaxies, comets, meteors, meteors and celestial bodies, and out of which hundreds of billions of galaxies have formed, including our Milky Way.
This galaxy (the Milky Way) contains over 100 billion stars larger and smaller than the Sun, with their constellations of planets and asteroids.
And that this theory says that the universe is a vast sea drenched in complete darkness in which the stars and planets glow in their positions which were scattered over them during the explosion from which the thermal radioactive bodies generate stars and dark bodies such as planets and their satellites.
And with every day, through astronomical observatories and telescopes of all kinds and developed, we discover every day that the sky does not stop widening thanks to the birth of thousands of bright stars in the universe of different sizes of nebula dust.
The basis of star formation is the smoke or dust from the nebula, and the point is that it happens over long periods of time, and once the stars are generated they attract their collection of scattered space particles, forming what is called a cluster of stars such as our solar system.
How small we are, 0 Universe.
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