A “doughnut UFO” has been seen in the sky of Switzerland. Green lights disappearing into the sky over Canada. A saucer-shaped glob unexpectedly tumbling into the sea.
Aliens Exists and The Government Knows
Truth-seekers and alien hunters have enough to think about in the year 2021. But it also provided answers, ranging from a long-awaited Pentagon study on military UFO encounters to fresh information on habitable exoplanets and the truth about a rumored “alien signal” from the sun’s closest neighboring star. In 2021, we learnt nine facts about aliens (and where to seek for them).
UFOs exist (and the government knows it)
The Pentagon issued a long-awaited study in June covering 144 UFO sightings between 2004 and 2021. The study was intended to analyze “the danger presented by unexplained aerial phenomenon (UAP),” and it officially authenticated multiple UFO encounters that had only been disseminated via social media up until that point. On the one hand, the 9-page analysis acknowledged that “most of the UAP identified definitely actually represent real things,” which include anything from birds and balloons to foreign spying equipment and top-secret US government operations. Those seeking for confirmation of extraterrestrial intelligence may have been disappointed when the study failed to connect any of the 144 encounters to extraterrestrial activities.
Black holes have the potential to be extraterrestrial powerhouses.
While extraterrestrial hunters spend a lot of time looking for habitable planets outside of our solar system, a research published in the journal Monthly Notices of the Royal Astronomical Society in July advises that scientists should not ignore nature’s most extreme objects: black holes. Because black holes may emit up to 100,000 times the energy of a star like our sun, they might be attractive targets for extraterrestrial civilizations seeking to fuel their interstellar ventures, according to the study’s authors. Aliens may achieve this by stealing energy from the disc of white-hot matter spinning around a black hole’s horizon using high-tech devices called Dyson spheres (huge, energy-siphoning orbs initially envisaged in the 1960s), then radiating that energy outward into space. The authors of the research speculated that the re-radiated energy would produce a specific wavelength signature that astronomers might detect from Earth. The researchers are presently working on methods to look for such telltale signs in existing telescope data.
Alien worlds may not resemble Earth in appearance.
Typically, the quest for extraterrestrial life starts with the search for Earth-like planets, but according to a research published in the Astrophysical Journal in August, there may be another kind of alien world that is just as favourable to life. The study authors speculate that “hycean” planets, which are up to 2.5 times the size of Earth and have massive oceans of liquid water beneath hydrogen-rich atmospheres, could be the ideal environment for microbial life similar to “extremophiles” that thrive in some of Earth’s harshest environments (such as hydrothermal vents). These planets are not only plentiful in the Milky Way galaxy, but they are also highly varied, with some circling very near to their home star and others orbiting very far away. According to the authors, both might possibly house itty-bitty life under their waves, implying that alien planet searchers may have a whole new path to explore.
One of Saturn’s moons has the potential to support life.
According to a June research, the methane emitted by Enceladus, Saturn’s sixth biggest moon, might be a hint that life exists in the moon’s deep sea. Geysers shooting water ice into space from “tiger stripe” cracks near Enceladus’ south pole were identified by NASA’s Cassini Saturn mission in 2005. The material is supposed to emanate from a vast ocean of liquid water under the moon’s frozen surface, but the orbiter discovered a number of other chemicals in the geysers, including dihydrogen (H2) and a variety of carbon-containing organic molecules, including methane (CH4).
Researchers used a number of simulations to see whether such molecules may be evidence of microorganisms that “consume” dihydrogen and create methane as a waste product in the current study. The researchers discovered that methane-farting bacteria might be contributing to the planet’s gassy geysers, implying that life on the frozen moon cannot be ruled out.
It’s possible that scientists are overlooking “alien garbage” in our own solar system.
The strange, cigar-shaped object ‘Oumuamua — which zoomed through our solar system in 2017 — is almost certainly a piece of alien technology, according to Harvard astrophysicist Avi Loeb’s recent book “Extraterrestrial: The First Sign of Intelligent Life Beyond Earth” (published in January by Mariner Books). In his book, Loeb claims that the object’s peculiar, elongated form (unlike any known comet), extraordinary brightness, and apparent acceleration away from the sun indicate that ‘Oumuamua is a piece of extraterrestrial technology that was unintentionally thrown into our solar system.
“It’s a buoy. A grid of communication pods… Defunct or abandoned technical rubbish from other intelligent living things “Loeb penned the piece. “All of them are reasonable solutions for the ‘Oumuamua enigma – credible since mankind is currently performing these things here on Earth, although on a far smaller scale.” (The majority of astronomers who have researched the item prefer natural explanations, such as it being a cosmic “dust bunny” or just a strange comet.)
Humans might have been seen by tens of thousands of extraterrestrial planets.
While human attempts to identify extraterrestrial civilizations among the stars have just recently begun, more than 1,700 alien civilizations may have been studying us for thousands of years. According to a research published in the journal Nature in June, throughout the previous 5,000 years, 1,715 neighboring star systems have had a perfect viewing angle of Earth, with more than 1,400 of them still having a clean view now.
These stars are all within 300 light-years of our planet, with 75 of them orbiting within 100 light-years. Given that humans have been sending radio signals for about a century, any of the 75 star systems are close enough that “our radio waves would have washed over them already,” according to lead study author Lisa Kaltenegger, an associate professor of astronomy and director of Cornell University’s Carl Sagan Institute. Another issue is if any possible civilizations in those solar systems desire to interact with us.
There is no such thing as a “best” technique to interact with extraterrestrials.
What’s the greatest method to inform aliens where we live if they’re monitoring us from a distance? In December, Live Science reporter Joanna Thompson studied this subject and discovered that no one solution is perfect. On the one hand, radio waves offer a tempting approach to communicate with extraterrestrials because they fall into a suitable “water hole” in the electromagnetic spectrum — a frequency range between 1420 and 1720 megahertz that is generally free of cosmic background noise.
Radio waves, on the other hand, expand as they travel, so any message we broadcast will get more diluted the farther it travels from Earth. This is not an issue with laser light, but laser communications need extreme accuracy and are unlikely to reach any extraterrestrial observers unless we send our message straight to their star system. Both approaches have merits, but none is flawless.
It’s possible that our own technology is getting in the way.
On April 29, 2019, astronomers discovered a signal from Proxima Centauri — the nearest star system to our sun and home to at least one potentially habitable planet — beaming toward Earth. Researchers interpreted the signal as a probable indicator of extraterrestrial technology since it fell within a small spectrum of radio waves that are seldom produced by human aircraft or satellites. The signal, however, never appeared again, as explained in a paper published in the journal Nature Astronomy in October: The signal was actually caught by a faulty computer or cellular device positioned near the telescope.
The researchers examined the 2019 data once more and discovered several “lookalike” signals that appeared to be missing components of the so-called alien transmission; when combined, these signals fit a range of frequencies “consistent with common clock oscillator frequencies used in digital electronics,” according to the researchers. In other words, this extraterrestrial transmission seems to have been a malfunctioning human computer, but examining and recognizing it provides scientists with vital expertise distinguishing genuine deep-space signals from Earthly noise.
Alien “abductions” might be the result of lucid dreams.
According to a study published in July, lucid dreaming, in which people are partially aware of and control their dreams while sleeping, could explain so-called alien abduction stories. Claims of such kidnappings extend back to the nineteenth century; the circumstances of the kidnappings are sometimes surreal, evoking feelings of panic and paralysis. Because some dream states have been linked to such sensations, Russian researchers questioned whether dream tests may provide information regarding supposed alien encounters.
The researchers had 152 lucid dreamers dream about contacts with aliens or UFOs, and discovered that a percentage of the dreams matched true reports of purported alien abductions. Sleep paralysis and acute terror were reported by 24 percent of individuals who characterized their dream experiences as “realistic.” Such feelings often accompany tales of alleged alien abductions, and although persons who claim to have been abducted by aliens may think what they saw was genuine, the research authors believe they were most likely having a lucid dream in which they had an extraterrestrial encounter.
Read of others such science and technological issues of note at Science and Technology here!