if its mass is toe, it will burn too fast to wait for life to appear,
earth' s orbit is appropriate, it makes the temperature oh just right for life to exist,
if earth were in the orbit of venus or mars, it would be too hot or too cold for life to exist,
slowly say: why is life a miracle of the universe?
doris looked at the transparent wooden rimless smart gsses, and said slowly:
because of the process of life geion and evolution, there are many special ditions,
however, even the simplest life oh still has requirements for the enviro,
for example, they need water, anic materials and energy,
without any one factor, they may not survive,
doris looked at the transparent wooden rimless smart gsses, and said slowly:
martian life should be some kind of radiation-tolerant micranism,
the surface of mars is extremely harsh and dangerous for life,
at this time,
nina looked at the transparent wooden rimless smart gsses,
say slowly: is there a variety of alien life in the sor system?
most of the hydrogen in the sun will aggregate into helium, at this time a so-called helium fsh will our and bee a red giant star,
its volume will increase to 100 times its inal size and engulf mercury, venus and earth,
this is the end of the earth...
this led to the eventual extin of many anisms, including dinosaurs, due to the rupture of the food .
but the milk animals were a blessing in disguise, and the earth has since had a new dire of biological evolution.
this is the beginning of the anthropoe,
it will be once every 10,000 years, then no advanced life evolve on the earth at all,
the emergence of human beings is believed to be the result of a series of fortuitous events oh,
we know that there have been several mass extins of life in the 4.6 billion-year history of the earth,
faster than the retive velocities of two stars at close enters,
this means that microbes may be able to take advantage of this process,
jumping from the sor system to another pary system passing by,
mass extins oh seem to happen every 20 to 40 million years,
ets from alien gaxies are the main cause of extin oh,
the sor system will be bombarded by such ets,
<h1>symposium 04</h1>
symposium 04
half an hour,
the sun has a panion star called nemesis,
every 26 million years or so, it collides with the oort cloud region at the edge of the sor system,
this number is very close to the cycle of mass extins oh,
if any of these ditions are missing,
then life would not be able to arise or evolve to the level it is today,
the sun is suitable for the existence of life,
with tinuous exploration, we have learned more about the earth and other ps,
half an hour,
nina looked at the transparent wooden rimless smart gsses,
doris looked at the transparent wooden rimless smart gsses, and said slowly:
after 3.8 billion years of evolution,
now there are many forms of life oh, many species,
sihe enviro of mars is so harsh, it is impossible for the humanoid martians to exist in our imagination, and even other ordinary creatures we know ot survive on it,
oh, there are also some pces where the enviro is quite harsh, but there is still life,
for example, a halophilic archaea lives in the cold and highly saline enviro of antarctica.
at this time,
nina looked at the transparent wooden rimless smart gsses,
said slowly: could there be living things on mars?
even if the anthropoe could go on forever,
but the ultimate fate of humans and the p depends rgely on the sun.
about 5 billion years ter,
the reason for the extin of the dinosaurs is reted to the chikrube meteorite that hit the yu peninsu in mexico.
after that meteorite impact, the atmosphere was heated to temperatures that would be difficult for rge anisms to survive,
and form a long-term, global severe climate,
the existence of life oh and the evolution of advanced life is also reted to the fact that the earth has a jupiter,
it is precisely because of jupiter that has the rgest mass and volume that it attracts many meteorite impacts to the earth,
if there is no jupiter, the ces of earth suffering from the same meteorite that killed the dinosaurs,
frequent exge of material with other pary systems,
dust kicked up by et impacts be pushed by the pressure of sunlight,
flying outward at a speed of 108,000 kilometers per hour,
sit in the first half-person high wooden high chair to the left of the podium,
doris wearing a smart nanomembrane face mask,
get up and walk slowly to the front of the podium,