Space
Thinking planet: Earth knows how to regulate the global climate itself
Scientists have proven that our planet has geological mechanisms that protect its climate from catastrophic events. In other words, the Earth seems to be able to think.
The Earth has gone through many turbulent times: our planet has had periods of global volcanism, epochs of glaciation, sharp increases and decreases in solar radiation fluxes. And yet, for the last 3.8 billion years, life has continued to evolve on our planet.
Scientists suspected that the Earth has some kind of “fuse” that keeps the climate in a habitable range. But until recently, researchers could not prove its existence.
What is this “tool” and how it works, researchers at the Massachusetts Institute of Technology (MIT) found out. They confirmed that the planet has a so-called “stabilizing feedback” mechanism.
This mechanism has been working for hundreds of thousands of years, slowly but surely pushing the Earth’s climate away from the edge of the abyss, in which life can no longer appear again.
Scientists believe this feedback is based on a geological phenomenon called silicate weathering. This is a slow but constant process involving a series of chemical reactions that take place in silicate rocks. They “pull” carbon dioxide out of the atmosphere, “burying” it in sedimentary rocks on the ocean floor.
Scientists have long noted the important role of silicate weathering in regulating the Earth’s carbon cycle.
This mechanism may be the geologically constant force that keeps the concentrations of carbon dioxide in the atmosphere at a level acceptable for the existence of life. As a consequence, global temperatures are “under control” of Mother Earth.
Let us clarify that this idea has been around for many years, but so far there has been no direct evidence that such a feedback operates continuously over millions of years.
Now, MIT researchers have applied mathematical analysis to uncover patterns in paleoclimate data over the past 66 million years.
The research team has been searching the dataset for some recurring phenomena that would keep global temperatures within a habitable range all this long.
So scientists discovered that a constant pattern really exists. The temperature on Earth can fluctuate for some time, critically rising or falling, but then inevitably stabilizes. As if someone is looking after the balance (scientists are not inclined to believe in the supernatural, attributing everything to natural processes).
True, the process of temperature stabilization is very slow: it takes hundreds of thousands of years. This duration coincides with how long, according to researchers, the weathering of silicates lasts.
This is the first work in which evidence supports the existence of such a stabilizing feedback.
The results obtained by MIT scientists may explain how the Earth remained habitable despite the fact that its geological past is filled with dramatic climatic events, many of which could lead to the apocalypse.
“On the one hand, this is good, because now we know that today’s global warming will be neutralized thanks to this stabilizing feedback,” says co-author of the work, graduate student Konstantin Arnscheidt. “But, on the other hand, this will take hundreds of thousands of years, and our decisions today’s problems are needed now.”
The study was published in Science Advances.
A former US Air Force fighter pilot asserts that he has deciphered
the method behind the extraordinary maneuvers of UFOs, reports dailystar.co.uk.
Over
the past two decades, numerous military encounters with these enigmatic
crafts have been reported, prompting a significant investigation by the
Pentagon.
One of the most renowned sightings occurred during the
USS Nimitz encounter, where fighter pilots witnessed a UFO descending
from 28,000 feet to just above sea level in less than a second.
This
astonishing movement would imply that the craft reached a staggering
speed of 19,000 miles per hour, a velocity that would be fatal to any
human pilot.
According
to Chris Lehto, a former USAF pilot, the craft exhibits two key
characteristics: it moves without inertia, essentially lacking weight,
and it accelerates at an incredibly rapid pace without affecting its
surroundings.
Image: NATO Allied Air Command/Facebook
Chris
believes that the explanation lies within a technology that seems
straight out of science fiction. He proposes that the answer to the UFO
enigma lies in the Alcubierre Drive, a theoretical interstellar engine
conceptualized by Mexican physicist Miguel Alcubierre in 1994.
The
Alcubierre Drive employs a form of “space warp” technology, reminiscent
of what has been depicted in episodes of Star Trek. By bending space, a
craft inside a “warp bubble” could potentially travel at or even
surpass the speed of light without violating the known laws of physics.
While
the Alcubierre Drive remains a hypothetical concept with challenges to
overcome, Chris notes that the required energy is no longer believed to
be unattainably large.
Patents
filed with the US patent office outline the potential workings of the
drive, as well as another groundbreaking technology theorized by
American aerospace engineer Salvatore Pais.
Pais suggests that
high-powered rotating magnets could theoretically eliminate an object’s
inertia, and he has filed a patent for a starship based on this
principle.
However, Chris maintains skepticism regarding Pais’
theory. He explains that while Pais’s patent applications for the US
Navy attracted attention for their potential energy-related
applications, doubts have been raised about their feasibility. There is
speculation that they may be scams, pseudoscience, or disinformation
intended to mislead adversaries of the United States.
Alternatively,
rival theories propose that the “Tic Tac” UFO is a classified Pentagon
project testing similar advanced technologies discussed by Chris.
Scientists say they have found evidence of a new Earth-like
planet that has suddenly appeared in our Solar System and is orbiting
the Sun.
Physicists, including those from the National Astronomical Observatory
of Japan, said the planet is likely to be the mysterious ‘Planet Nine’
that was hypothesised to exist in the far outer edges of the Solar
System.
Several studies in the past have suggested there is likely an
undiscovered planet beyond the Kuiper Belt – a stellar disk of materials
such as asteroids, space rocks, comets around the Sun in the outer
Solar System past the orbit of Neptune.
Independent.co.uk reports: In the new research, published recently in The Astronomical Journal, scientists
found that some of the objects in the Kuiper Belt behave in a way
indicative of the presence of a small planet among them.
One such object, they said, is about 500 astronomical units (AU) from
the Sun, where 1 AU is the distance between the Sun and the Earth.
In comparison Neptune is at a distance of 30 AUs from the Sun.
Some of these were also found to have “odd” orbits suggesting they
are being pull by the gravity of a cosmic entity larger than those that
typically influence such objects.
Computer simulations run by the scientists indicate that the most
likely explanation for the observations was another hidden planet in the
Kuiper Belt.
“We predict the existence of an Earth-like planet,” researchers wrote in the study.
“It is plausible that a primordial planetary body could survive in
the distant Kuiper Belt as a Kuiper Belt planet (KBP), as many such
bodies existed in the early solar system,” they added.
If such a planet exists, researchers say it would have a mass about
1.5 to 3 times that of Earth with an inclination of about 30 degrees.
They say the theorised planet’s orbit would likely place it between 250 and 500 AU from the Sun.
Researchers say the discovery of such a planet close to the Kuiper
Belt can unravel new constraints on planet formation and evolution.
“In conclusion, the results of the KBP scenario support the existence
of a yet-undiscovered planet in the far outer solar system,” scientists
noted.
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