Interesting Facts About Aliens, Which Became Known In 2021
2021 has given truth seekers and alien hunters a lot of food for thought. From the long-awaited Pentagon report on military observations of UFOs to new discoveries about habitable exoplanets, and the truth about the so-called “alien signal” from the closest star to the Sun.
Here are 9 facts we learned about aliens (and where to find them) in 2021, according to Live Science.
UFOs are real and the government knows it
In June, the Pentagon released a highly anticipated report detailing 144 UFO encounters between 2004 and 2021. The report officially confirmed several UFO sightings, which until then had been disseminated only through the yellow media.
Anyone hoping for an extraterrestrial intelligence recognition, however, must have been disappointed when the report failed to link any of the 144 described events to alien activity.
Black holes could be alien power plants
The study, published in July in the Royal Astronomical Society’s Monthly Notices, warns that scientists should not lose sight of nature’s most extreme objects: black holes.
Because black holes can emit 100,000 times more energy than stars like our Sun, they can be tempting targets for alien civilizations looking to set their interstellar ventures in motion.
To do this, aliens could use high-tech structures called Dyson spheres to steal energy from a disk of white-hot matter swirling around the black hole’s horizon, and then send it into space. Researchers are currently developing algorithms to search for these re-emissions.
Alien planets may not look like Earth
Typically, the search for alien life begins with a search for planets similar to Earth. But there may be another class of alien worlds equally favorable to life, according to a study published in the Astrophysical Journal in August.
The giant planets, which are 2.5 times the size of Earth and are covered in huge oceans of liquid water under a hydrogen-rich atmosphere, could be ideal places for microbes.
Not only are these planets abundant in the Milky Way galaxy, they are also incredibly diverse. The authors write that all options have the potential to have life, which means that a whole new area of study could emerge for hunters for alien intelligence.
One of Saturn’s moons may still be inhabited
Methane emanating from Enceladus, the sixth largest moon of Saturn, could be a sign that life is abundant in its underground seas, a June study found. In 2005, NASA’s Cassini Saturn orbiter discovered geysers ejecting ice particles into space from cracks near the south pole of Enceladus.
This material is believed to come from a vast ocean of liquid water splashing beneath the icy shell. Scientists have found that methane microbes can contribute to the planet’s gas geysers, which means life on an icy moon cannot be ruled out.
Scientists can ignore “alien debris” in our solar system
According to a recent book by Harvard astrophysicist Avi Loeb, Aliens: The First Sign of Intelligent Life Beyond Earth, Oumuamua’s strange cigar-shaped object that flew through our solar system in 2017 is almost certainly part of alien technology.
An artist’s impression of ‘Oumuamua, which means ‘messenger’ in Hawaiian
In his book, Loeb argues that the object’s unusual elongated shape and apparent acceleration from the Sun suggest that Oumuamua is not natural in origin, but is part of alien technology – possibly thrown into our world by the solar system by accident.
Thousands of alien worlds could watch people grow
Although human efforts to find alien civilizations only began in the last century, more than 1,700 alien civilizations may have watched us thousands of years ago.
According to a study published in June in the journal Nature, 1,715 nearby star systems have had an ideal viewing angle of the Earth over the past 5,000 years. And over 1400 of them still have this image today.
“All of these stars are within 300 light years of our planet, and 75 of them are orbiting less than 100 light years away. Given that humans have been transmitting radio signals for about 100 years, any of these 75 star systems are close enough that “our radio waves have already covered them,” said lead author Lisa Kaltenegger, assistant professor of astronomy and director of the Carl Sagan Institute at Cornell University.
Another question is whether the civilizations living in these stellar systems want to communicate with us.
There is no perfect way to communicate with aliens
If aliens are watching us, what is the best way to tell them about yourself? Writer Joanna Thompson researched this issue in December, finding that no method is perfect.
On the one hand, radio waves are a tempting way to communicate with aliens because these signals are placed in a convenient gap in the electromagnetic spectrum called a “water hole.”
On the other hand, radio waves expand as they propagate, which means that any message we send will be the more blurry the farther from Earth it is.
Laser light does not have this problem, but laser signals require incredible precision and are unlikely to reach any alien observers unless we aim our message directly at their star system. Both methods have their advantages, and neither is perfect.
Our proprietary technology can get in the way
On April 29, 2019, astronomers discovered a signal going to Earth, most likely from Proxima Centauri, the closest star system to our Sun, where at least one potentially habitable planet is located.
Since the signal was caught in a narrow band of radio waves that planes or satellites rarely emit, the researchers interpreted this as a possible sign of alien technology.
But the signal was never repeated, and a study published this October in the journal Nature Astronomy explains why: The signal actually came from a faulty computer or cellular device near the telescope that detected it.
Alien Abductions Could Be Lucid Dreaming
Dreams, which humans are partially aware of and able to control, may explain so-called alien abduction stories, according to a study in July. The circumstances of the abduction often seem fabulous and cause feelings of horror and paralysis. Certain sleep states are known to induce similar feelings as well.
Scientists asked 152 lucid dreamers to dream of encounters with aliens or UFOs. And they found that a number of sleepers recounted dreams that resembled descriptions of alleged alien abductions.
Of those who described their dreams as “realistic,” 24% also experienced sleep paralysis and intense fear. Similar emotions often accompany reports of alleged alien abductions.
And while people describing their alien abduction may sincerely believe it was real, they likely experienced an extraterrestrial encounter during lucid sleep, the study authors said.
Alien space debris stuck in Earth’s orbit, researchers say
Recently, a group of experts from Harvard University, led by physics
professor Avi Loeb, announced the possible presence of alien space
debris in Earth’s orbit, reports the Daily Star.
space research expert Professor Loeb is confident that the discovery of
such “interstellar objects could help expand our knowledge of possible
alien civilizations and technologies. A team of scientists is conducting
research to confirm that some of the objects in our orbit may be
connected to other star systems.
During an interview with Live
Science, Professor Loeb explained that these objects could enter the
solar system from interstellar space, defying Jupiter’s gravitational
pull and occupying limited orbits around the sun.
Some of them may
have technological origins similar to the probes sent by mankind into
interstellar space, such as Voyager 1 and Voyager 2, Pioneer 10 and 11
and New Horizons.
despite these interesting assumptions, Professor Loeb did not specify
what specific objects he was talking about. In his research report, he
notes that there could be “a significant number” of potentially
detectable objects in Earth’s orbit.
To confirm their assumptions,
the team of scientists uses computer simulations and the Vera Rubin
Observatory (Chile) with a high-resolution camera of 3.2 billion pixels.
This will allow for regular observations of the Southern sky and the
possibility of detecting several captured objects about the size of a
It is assumed that these interstellar objects passed through the
boundaries of the solar system and may carry unique information about
other civilizations and their technologies. If we could confirm the
origin of these objects, the mysteries that open before us, this would
be a real breakthrough in space exploration.
expresses hope that the new research will not only help expand our
knowledge of extraterrestrial technologies, but may also lead to the
discovery of new alien civilizations . Answers to such questions can be
of global significance and influence our understanding of the place of
mankind in the Universe.
while there are still many questions and assumptions, the study by
Professor Loeb and his team opens a new chapter in space exploration.
Each new discovery can be the key to deciphering the mysteries of the
cosmos and the possibility of encountering alien life forms.
Betelgeuse is acting strange again
Betelgeuse, a red giant on the brink of death, continues to show
unusual behavior. After the Great Blackout, which occurred in late 2019
and early 2020, the star became unusually bright. It is now the seventh
brightest star in the sky, while it normally ranks tenth. This has led
to speculation that Betelgeuse is preparing to explode in a
spectacularly large supernova.
However, scientists believe it’s too early to tell, and it’s likely
that this behavior is due to ongoing fluctuations after the Great
Blackout of 2019, and the star will return to normal within a decade.
Betelgeuse is one of the most interesting stars in the sky. It is
about 700 light-years from Earth and is a red giant in the last stage of
its life. It is also an unusual star for a red giant because it was
previously a monster blue-white O-type star, the most massive class of
Betelgeuse has changed its spectral type because it has almost
exhausted its hydrogen reserves. It now burns helium into carbon and
oxygen and has expanded to a gigantic size: about 764 times the size of
the Sun and about 16.5 to 19 times its mass.
Eventually it will run out of fuel to burn, become a supernova, eject
its outer material, and its core will collapse into a neutron star.
Before the Great Blackout, Betelgeuse also had periodic fluctuations
in brightness. The longest of these cycles is about 5.9 years and the
other is 400 days. But it seems that the Great Blackout caused changes
in these oscillations.
A new paper by astrophysicist Morgan McLeod of the
Harvard-Smithsonian Center for Astrophysics has shown that the 400-day
cycle appears to have been halved. This pulsational cycle is probably
caused by expansion and contraction within the star. According to
simulations carried out by MacLeod and his colleagues, the convective
flow inside Betelgeuse may have risen and become material that separates
from the star.
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