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The fact what is found can fall theory or turn it into scientific fact
The theory turns to the scientific fact through the process, where hypothesis turns theory, and then the theory turns to conjecture when the independent research teams are working with it. And then theory turns to the scientific fact when the evidence is supporting or falls theory.
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1) Hypothesis
2) The researcher will turn the hypothesis into a theory by finalizing the calculations and other source material and introducing it to other scientists and researchers.
3) Conjecture, where also other researchers are finding the facts what are supporting theory or what are not supporting that theory.
4) The systematic research in the conjecture stage would prove or fall theory. And if the theory is proven true by using scientifically accepted methodology that thing becomes the scientific fact.
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Proving or falling theory must is the process, what must be done by using the empiric and accepted scientific methodology, which means that the other independent researchers can test the theory by using tools, which is acceptable for scientific work. And you must remember that nothing in theories has ever fallen without testing and researching them.
So this means that there are many theories, that might not be proven true or false during our lifetime. If the main part of the theory is missing, research cannot prove or deny it. And the most well-known of those conjectures, what may stay conjecture is the "Riemann's conjecture" the method, which allows calculating the endless series of prime numbers.
If the group of the numbers is open and endless, that means that we must say that heretofore there is not found an end or zero points in the Riemann's conjecture(1), and that means the group of the prime numbers seem endless. But the fact is that the zero points or the point where the Riemann's formula doesn't give a prime number can found even tomorrow. So there are many theories that we can compare with Riemann's conjecture.
The SETI-program is the most well-known about those programs that might find intelligent extraterrestrial lifeforms after thousand years but it might make that thing even tomorrow. But if we are thinking about things like dark matter, we must realize that the part from the puzzle, what is missing is dark matter itself.
There is no straight observation of the dark matter, but we know that the huge number of invisible material is causing a massive gravitational effect in the universe, but nobody has ever seen dark matter itself. The gravitational effect shows that there is a massive formation of the invisible material, but what that material is, remains the mystery.
(1) https://en.wikipedia.org/wiki/Riemann_hypothesis
Image: https://en.wikipedia.org/wiki/Newtonian_telescope
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"White Dwarfs Hold Key to Finding Extraterrestrial Life"
Sergio Prostak, SciNews (http://www.sci-news.com/astronomy/article00900.html)
White dwarfs and planetary systems
The new observations show that white dwarfs (1) can have planetary systems. Or in this case, we should rather talk about confirmation, because a long time ago there have been found planets near the pulsars. Those observations have confirmed the theory about the post-solar planets true.
And the other thing that we must remember is that the universe is a small part of the entirety, what we can call as dimension. When we are observing the universe by using the Big Bang theory, we must realize that the universe is the bubble, what stays in the entirety, and even if there are no other universes, nothing closes away that there is the possibility that there could be stars and solar systems outside the bubble, what we are calling universe.
But there is the first time when the "habitable zone" around white dwarf has been found planets(2). The fact is that the planet could be a so-called post solar planet, which is formed after the star has ended its life or endemic energy product in the nova eruption. The post-solar planet means that in the interplanetary nebula is starting the same process, which has been formed the planetary system around the star.
The White Dwarf is the star, where are no endemic nuclear processes, but the thing is that on the surface on it can happen the nuclear reactions if the material will impact the core of the white dwarf. So astronomers have thought that there is a possibility that there are no lifeforms on those planets because the radiation from the white dwarf is not stable. The planet orbits white dwarf has oxygen in its atmosphere(3), that kind of observations are opening our minds to the possibility, that there could be living habitats for that kind of planets.
The fact is that there is found other post-solar planets orbiting the neutron stars. Those planets are causing changes in the radiation of the neutron star, which helps to detect them. But the radiation from neutron star sterilizes its planets and life is probably impossible, but the answer to that kind of question can get when we wound send the first probe to those planets, and before that everything is just a hypothesis.
And there is a possibility that the pulsar planets are hosting lifeforms(4). The radiation from those dead stars is stable and the lifeforms can stay at the dark side of their planet. If we want to search the intelligent and technically advanced civilizations we should search them near those old stars, and the reason for that is that those species have time to advance.
(1) https://en.wikipedia.org/wiki/White_dwarf
(2) https://edition.cnn.com/2020/09/16/world/jupiter-planet-orbiting-white-dwarf-trnd-scn/index.html
(3) https://www.space.com/21437-alien-life-white-dwarfs-failed-stars.html
(4) https://www.space.com/39157-deadly-pulsars-could-host-habitable-planets.html
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