How long can humans survive in the universe? Will humans become extinct like dinosaurs?

A cycle of 2.5 million years, first a few months in a newspaper read.

The early evolution of the class was very slow, after about millions of years of evolution, it was only about 200,000 years ago that humans evolved into early Homo sapiens, and about 100,000 years ago, humans evolved into late Homo sapiens, and modern humans belong to Late Homo sapiens. Obviously, in this long evolutionary process, not all ancient humans can evolve into late Homo sapiens, that is, modern humans.

At the end of stellar evolution, three types of objects will appear: white dwarfs, neutron stars, and black holes. White Dwarf:

A star will become a white dwarf if its mass is less than the mass of the Sun when its nuclear energy is exhausted. Without nuclear energy, it is powered by gravitational contraction, and when it shrinks to a few tenths to one hundredth of its original radius, the star becomes a white object with a very dense center that glows only with residual heat. The surface temperature gradually decreases, and it slowly becomes a red dwarf star, a black dwarf, and it is impossible to observe.

Neutron star: After a star runs out of nuclear energy, it becomes a neutron star if its mass is between the mass of the Sun. Neutron stars are superdense stars made up of a type of elementary particles called neutrons.

Its diameter is only about 10 kilometers, and its density is particularly large, reaching more than 100 million tons per cubic centimeter, and its rotation is particularly fast.

Neutron stars were discovered in 1967 in the constellation Fox and are also known as pulsars because they periodically emit pulses. Black hole: After the star is exhausted in nuclear energy, if the mass exceeds 2 solar masses, the equilibrium state no longer exists, the star will shrink indefinitely, the radius of the star will become smaller and smaller, the density will become larger and larger, and finally reach a critical point, at this time its gravitational force is so large that all nucleons, including photons, can not escape, just like a pitch-black bottomless pit, so it is called a "black hole".

In 1996, astronomers discovered a huge black hole at the center of the Milky Way, which orbits the center of the Milky Way at a speed of 200 kilometers per second.

When a black hole gets close to a celestial body, it sucks up some of the material from that celestial body. The attracted material rotates in a spiral and emits X-rays that can be detected by astronomers. This makes it possible to draw a graph of the gravitational field.

The gravitational pull of a black hole is much greater than that of other celestial bodies!

The Earth's current lifespan is 4.6 billion years, and it is not known how long it will be, but according to current estimates of the amount of hydrogen in the Sun's interior, the Sun has at least 5 billion years of normal lifespan. At the end of the Sun's lifespan, it evolves into a white dwarf, and eventually a black hole after its gravity collapses. And black holes have strong heat and attraction, so the earth will still end.

If the poster wants to know the specific content, you can take a look at "A Brief History of Time".

Newspapers and books say things differently.

1.American scientists say that if humans continue to destroy the planet as they do now, they will become extinct within 60 years. (Personally, probably a warning to everyone).

2.There is a version of "100,000 Whys" that says that humanity will become extinct during the ice age in billions of years. (I remember it).

3.Humans will migrate to other planets before the ice age. (Optional:.)

Moon, Mars, Enceladus) 4.Humanity will perish as the universe gradually becomes larger (smaller) and the temperature gradually rises (decreases). (Optimistically, my generation won't live that long anyway.) )

Personally, I think that humans will become extinct, but they will be eliminated in evolution, not extinction and natural disasters.

For now, yes, in another fifty years, the sun will burn out, and human beings will not live long, and if they find other planets, they will not need to rely on the sun to prevent extinction.

About 5 billion years! There is a possibility of extinction, and the extinction rate is quite high! However, it is possible to move to the moon.

The landlord can take a look at [Maya's prophecy]. The high-tech Mayans developed a calendar based on the laws of the Milky Way [Zhuo Jin Calendar]. According to the calendar, the earth will disappear around December 22, 2012 due to the assimilation of the Milky Way.

Perhaps, today's environmental problems are too serious, and the trend of global warming is obvious to everyone, just like the movie "The Day After Tomorrow" depicted, maybe the earth's ice age will come early, and no one knows when.

A good life is also created by human beings, but the current environment is also created by human beings, the temperature of the earth is rising, the environment is being destroyed, there is a can, how many billion years later, the earth can no longer exist, but think about what human beings were like at that time, it is possible to evolve like ancient costumes to fly, super high IQ, who can see such a world? ?

No. Humans can move to Mars, which has a similar environment to Earth.

However, at that time, humans would evolve into higher beings.

Personally, I don't think so, because didn't humans find a planet in the universe that was the same as the Earth?

It's impossible to say that if there were a swarm of meteorites hitting the Earth, the current level of science would not be possible.

Humans are the same as other creatures, God sees them the same, animals as big as dinosaurs are extinct, and humans are ......You tell me?

It's possible. But aren't we looking for a planet that can be habited like Earth?

I don't know, I'll count it then.

I think humans can still survive because the current science and technology are very advanced and more than enough to deal with dinosaurs, and I think humans can make corresponding plans to live in peace with dinosaurs and build a harmonious ecosystem.

I don't think they can survive, because some dinosaurs are carnivores, and their size is relatively huge, equivalent to dozens of times that of humans, and humans can't pose a great threat to them, so it may be that humans can't survive.

Aren't dinosaurs on our dinner table right now? It's not the two-legged beasts that can tear the earth apart in minutes, but their survival, right?

But I think that with an efficient human livestock system, not only will they survive, but they will also be very large and produce a lot of high-quality protein.

No, because dinosaurs don't have brains, and dinosaurs aren't picky eaters, and there are many dinosaurs that are so large that humans can't beat them.

Humans can survive because the development of human technology is quite good, and they can deal with dinosaurs very well.

Humans can't survive anymore, dinosaurs are much larger than humans, and humans are also one of the prey of dinosaurs.

When humans exist to the point of non-existence, this fear is meaningless.

Humans have existed for 6 million years.

In the 4.6 billion years since the birth of the earth, human beings have been the only highly intelligent civilization on the earth. Humans began to evolve 6 million years ago (6 million-year-old proto-humans were discovered in 2000), and civilization appeared 1 million years ago. Dinosaurs have been on Earth for 160 million years.

Humans have been on Earth for less than a fraction of the time when dinosaurs dominated the planet. In 2000, a 6 million-year-old fossil of Homini d'hominus (Homo tugen) was found in the Tugen Mountains in Kenya, Africa, so humans appeared in the Cambrian period more than 6 million years ago, and Homo sapiens began to evolve 200,000 years ago. The civilization of human beings to create writing is only 60 million years old, and the rapid development of technology such as electricity is less than 300 years.

About 80 million years ago, the common ancestor of primates, including humans, lived in the same era as the dinosaurs. It wasn't until 60 million years ago that Australopithecus began to appear. More than 50 million years ago, primates differentiated from lower primates, protomonkeys, to higher primates.

33 million 24 million years ago, apes arose from the monkeys of the Old World.

Human evolution: Human evolution originated from forest apes, and developed step by step from primates through a long evolutionary process. It has gone through four stages: ape man, primitive man, sapiens man, and modern man. <>

Can't be sure.

Humans have been living on Earth for 2.4 million years.

2.4 million years ago, Homo sapiens appeared on the ancient land of Africa, the first creature that could be called human. After more than two million years of evolution, Homo sapiens differentiated into a variety of prehistoric humans, including Homo erectus, Homo heidelbergensis, and Neanderthals.

By 250,000 years ago, Homo sapiens had evolved. Homo sapiens eventually survived the brutal competition for survival and became the only species in the genus Homo, and humans on Earth today are considered descendants of Homo sapiens.

As early as 4 billion years ago, life probably evolved on Earth. Life on Earth has been uninterrupted for billions of years. But no species can exist on Earth forever, and with the continuous change of climate and environment, life on Earth has changed one after another, and the number of existing species on Earth accounts for only 1% of what has appeared.

After each mass extinction event, species on Earth undergo a major reblemire, with new species replacing old ones. The few surviving species quickly occupy the previous niche, which gradually evolves into new species. Although there is no shortage of life on earth, there is a great shortage of those that can survive.

The history of human beings can be traced back millions of years, while the history of the real conquest of nature is only a few thousand years, and the gradual development of human civilization is nearly 2,000 years. So how long can humans live on Earth? Is there an answer now?

It's safe to say that there is an answer now, it's about 1.1 billion years.

According to the research of modern astronomy, the lifespan of stars similar to the size of the sun in the universe is generally about 10 billion years, and the sun has existed for 4.5 billion to 5 billion years. Writing this, many people will say that if there is a sun, there can be human beings, then the earth still has 5 billion years to live. Actually, if you think simply, an elderly person must be completely healthy and free of diseases?

No way. The same goes for the sun. With the depletion of hydrogen, the sun will be more unstable in early old age, when no one can guarantee that the sun will not change suddenly; You must know that many small changes in the sun pose a great threat to human beings, such as sunspot eruptions, solar wind, magnetic storms, and so on.

Therefore, it is accurate to calculate that human beings can still exist under the protection of the sun for about 1.1 billion years.

In 5 billion years, after the sun is completely depleted of hydrogen, the sun will expand first, and the boundary will be close to the earth, and it will completely engulf Mercury and Venus. At this time, the sun is called a red giant, and it is very hot, completely evaporating the water from the earth. Without water, life generally does not exist; Without water, the temperature of the earth is also very high.

The Sun then shrinks into a white dwarf. At this time, the temperature of the sun is very low, and the temperature of the earth will also be close to absolute zero. It is impossible for life to exist.

So, humanity still has 1.1 billion years to find another habitable planet. Such a long time is enough. In a few hundred years, mankind should have deciphered the theory of the nature of physics (i.e., understanding the nature of matter in the world and the laws of interaction between matter).

At that point, traveling in space will be a breeze.

I hope that each of us can contribute our own strength to promote the development of human civilization!

If there is no alien invasion, it must be until the destruction of the earth.

There's about 40-5 billion years left.

Extinction is certain, and if life can be born, there will be a time and a way of death. Historically, life on Earth has been a passing moment in the history of the universe. The extinction of the dinosaurs marks the end of the era of cold-blooded animals, the arrival of the era of hot-blooded animals, human beings are hot-blooded animals, compared to animals, human beings are kings, will use science and technology, scientists have found that the sun has been 5 billion years old, there are still 5 billion years of life, and human beings have used the sun to survive on the earth for up to 1 billion years.

The change of the sun, there is nothing that man can do.

Solar system. This is the absolute inevitability of the celestial body, as well as, natural disasters on the earth, ** and other sudden events, human beings have no way, in serious cases, there is no possibility of rebuilding their homes at all, people are invincible, more serious human wars, especially nuclear **, human extinction will occur. Nature, human beings cannot control, nuclear war, human beings must strive to avoid.

Humans were born 5 million years ago, about 4.5 million years ago, humans and apes began to diverge, giving birth to Australopithecus, which later evolved from Australopithecus 2 million years ago, and further developed into modern humans.

Humans are classified from the animal kingdom, and taxonomically they belong to the subphylum Vertebrates, Mammalia, Primates, Anthropoids, and Homo. Based on the fossil material of Australopithecus and hominin that has been discovered, the earliest humans may have appeared 3 million or 4 million years ago.

Theoretically, the process of human origin is divided into three stages, namely the stage of apes, the stage of man and ape, the stage of man who can make tools, and the later stage includes the two major periods of ape and Homo sapiens, which are divided into two stages: early and late.

The early ape-man stage, which lived between 3 million and 1.5 million years ago, already possessed the basic characteristics of humans, such as the ability to walk upright and make simple gravel tools.

The late ape-man stage, about 2 million to 300,000 years ago, has a human-like body and a large brain, which can make more advanced paleolithic tools and begin to use fire, such as the Peking ape man in Zhoukoudian, Beijing, China.

The early Homo sapiens (hominis) stage, 10-200,000 to 50,000 years ago, gradually broke away from the characteristics of apes and was very close to modern humans, such as Neanderthals in Germany.

Late Homo sapiens (new man) stage, about 4-50,000 years ago, the evolution of human beings at this time has accelerated significantly, in the form has been very similar to modern man, in culture, there has been the art of carving and painting, and there are ornaments, such as the Zhoukoudian Keel Mountain Cave Man discovered in 1933, at this time primitive religion has been produced, has entered the matriarchal society, in the late Homo sapiens stage, modern man began to differentiate and form, and distributed to all parts of the world.