Intelligent life may be in it's "very young" stage in the observable Universe. Its 200 billion galaxies show a clear potential to continue on as we see them today for hundreds of billions of years, if not much longer. Because planets and life are so young in our Universe, says Harvard's Dimitar Sasselov, perhaps "the human species are not late comers to the party. We may be among the early ones."
That may explain why we see no evidence of "them" and may go a long way to explaining the famous Fermi Paradox, which asks if there's advanced intelligent life in the Universe, where are they? Why haven't we discovered any evidence of their existence?The story of the Universe according to Sasselov in is new study, The Life of Super-Earths, looks like this: generations of stars made enough iron and oxygen, silicon and carbon, and all the other elements from the original hydrogen and helium about 13 billion years ago to be able to form the Earth we live on and the planets the Kepler Mission is discovering today.
Stable environments in galaxies that were enriched enough to have planets only became available some nine billion years ago and rocky Earth-like planets and larger super-Earths, only some 7 to 8 billion years ago. And Life had to wait until that time if not later to begin its emergence throughout the Universe. Between 7 and 9 billion years ago, enough heavy elements were available for the complex chemistry needed for life to emerge were in place along with the terrestrial planets with stable environments necessary for chemical concentration.
Enrico Fermi argued that given the old age of the Universe and given the large number of stars and planetary systems and the incredibly short timescale it took humans to develop technology that other origins of life and civilizations in the Milky Way could have had a significant head start and should be significantly more advanced than we are.
Sasselov concludes that the statistical argument for Fermi's Paradox "holds true only if the timescale for the emergence of life is much shorter than the age of the universe, but not so if the two are comparable." The future for life in the Universe looks excellent, says Sasselov.
Planets may be just a tiny fraction of the Universe because of their small size, but there are so many of them that the probability of life grows exponentially. The Universe is passing through the stelliferous era --its peak of star formation--but appears to be still peaking in its formation of planets. There are more stars in the Universe than there are grains of sand on Earth and there are an equal number of planets.
There are 200 billion stars in the Milky Way and 90% are small enough and old enough to have planets in orbit. And only 10% of these stars were formed with enough heavy elements to have Earth-like planets with 2% of these --or 100 million super-Earths and Earths-- will orbit within their star's habitable zone.
Sasselov's argument in The Life of Super-Earths is compelling.
But one has to wonder, however, that if another planet out there in the Milky Way (and billions of galaxies beyond) is only a million years older than Earth, how much more advanced and detectable would their technology be? As Arthur C. Clarke famously wrote, any advanced alien technology would be indistinguishable from magic.
"Different human being" refers to a distinct individual among the human species, while "being a human" refers to the state of belonging to the species Homo sapiens with all its inherent characteristics and attributes.
A human being refers to the biological aspect of being a member of the species Homo sapiens. A human person, on the other hand, incorporates qualities such as consciousness, self-awareness, and personhood that go beyond mere biological existence. In essence, while all human beings are of the species Homo sapiens, not all human beings may possess the attributes associated with being a human person.
That is correct. Modern humans belong to the subspecies Homo sapiens sapiens, which distinguishes us from other extinct human species like Neanderthals or Denisovans. This classification helps to differentiate contemporary humans from our ancestors or other closely related species.
A human being is a homo sapien. Humans are mammals, related to the ape family, but with our larger brains, the most developed animal on planet Earth. We also have a distinctly more upright posture, and are one of the only habitual bipeds in the animal kingdom (the other main group being grounded or flightless birds). The phrases 'human being' can refer to either a man, woman or child, of any age, race or nationality.
Yes, all humans are Homo sapiens. There's some disagreement over whether Neanderthal Man was a subspecies of Homo sapiens (Homo sapiens neanderthalensis) or a separate species (Homo neanderthalensis), but no reputable biologist would disagree that all modern humans are not only the same species but the same subspecies.
advanced intelligence
Humans are often considered the most advanced and powerful species on Earth due to their ability to think abstractly, communicate complex ideas, and create technologies that significantly alter their environment. This cognitive capacity has led to advancements in science, medicine, and engineering, enabling humans to solve problems and manipulate resources in ways that no other species can. However, this power also comes with responsibilities and challenges, particularly regarding environmental sustainability and ethical considerations in how we use our abilities. Ultimately, while humans dominate in many ways, the interconnectedness of ecosystems reminds us that each species plays a crucial role in the balance of life on Earth.
"Different human being" refers to a distinct individual among the human species, while "being a human" refers to the state of belonging to the species Homo sapiens with all its inherent characteristics and attributes.
the most awesome human being ever to grace the presence of the lesser human being species.
Homosapian
Skin
maybe more
Because the more powerful human being want to impose their power on the less power (other) human being: sofisticated form of slavery.
Yes
A human being refers to the biological aspect of being a member of the species Homo sapiens. A human person, on the other hand, incorporates qualities such as consciousness, self-awareness, and personhood that go beyond mere biological existence. In essence, while all human beings are of the species Homo sapiens, not all human beings may possess the attributes associated with being a human person.
The gorilla is not a human being, although it is a related species. Both humans and gorillas are categorized as primates.
A human being is a type of animal, and includes you me and all other humans in the world. We are a species of primate and are closely related to chimpanzees, monkeys, apes, etc.