Tag: Oumuamua

Alien ‘Artifacts’ Made By Civilizations From Mars or Venus Could Be Hidden On Earth, NASA Study Suggests

by Jasper Hamill                     December 26, 2018                     (metro.co.uk)

• Dozens of NASA space scientists teamed up to explore how our species could detect ‘technosignatures’, ie: the name for pieces of evidence which give away the presence of advanced alien civilizations – radio waves are detected coming from a distant star system, or Dyson Sphere ‘megastructure’ power stations surrounding a star in order to harvest its’ energy, for example.

A November 28, 2018 NASA report entitled “NASA and the Search for Technosignatures” suggests that the truth about extraterrestrials could be lurking right under our noses. In a new report, scientists suggest that our own planet may be hiding alien ‘artifacts’, some of which may even have been built by extinct civilizations who lived on Mars, Venus or even Earth.

• ‘Because the geological, paleontological, and archaeological records on Earth are so incomplete, it is even possible that the Earth itself hosts such (extraterrestrial) artifacts, although, again, this idea is often conflated with unscientific popular imaginings and science fiction stories about alien visitation, and so must be approached carefully,’ the NASA researchers wrote.

• The report continues, ‘If technosignatures were discovered in the solar system, it would be worth considering whether their origin might not be interstellar. Specifically, since the Earth is home to the only known species capable of interstellar communication and planetary travel (although both technologies remain in their early development), the Earth remains the only known planet fecund enough to promote technological life, and so it or an early, habitable Mars or Venus could even be the origin of such technology.’

• The NASA report noted that ‘Technosignatures in the solar system might come in the form of free-floating probes or structures—either passing through the solar system or in orbit around the Sun or other body—or in the form of structures or other signs of technologies on planetary surfaces.’

• So far, the only potential alien artifact we’ve seen has been ‘Oumuamua’, the first ‘interstellar visitor’ to be observed in our stellar neighborhood after traveling here in 2017 through deep space. Still, most scientists believe its origins are natural rather than artificial. Oumuamua changed direction as it passed the sun, which may have been caused by a natural process called outgassing – although there is a very slight chance this could have been the result of it being steered somehow.  (see previous ExoNews article on the Oumuamua visitor here)

 

You might think that humanity’s best chance of finding alien life involves peering deep into space and analysing faraway galaxies.

But a Nasa study has suggested the truth about extraterrestrials could be lurking right under our noses.

Dozens of space scientists have teamed up to explore how our species could detect ‘technosignatures’, the name for pieces of evidence which give away the presence of advanced alien civilisations.

Some of these tell-tale signs are obvious. For instance, if loads of radio waves are detected coming from a distant star system, then it could be a clue which shows it’s inhabited by intelligent extraterrestrial organisms.

We could also search for alien societies by looking for ‘megastructures’ called Dyson Spheres, which are theoretical power stations built surrounding a star to harvest its energy.

These would be easy to spot because they are likely to be gigantic and block out starlight whenever they pass in front of their sun.

Other technosignatures are harder to identify, such as evidence that a planet has been polluted by heavy industry.

In the new report, scientists also make the fascinating suggestion that our own planet may be hiding alien ‘artefacts’, some of which may even have been built by extinct civilisations which lived on Mars, Venus or even Earth.

‘Because the geological, paleontological, and archaeological records on Earth are so incomplete, it is even possible that the Earth itself hosts such artefacts, although, again, this idea is often conflated with unscientific popular imaginings and science fiction stories about alien visitation, and so must be approached carefully,’ researchers wrote.

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How the Oumuamua Mystery Shook up the Search for Space Aliens

by Corey S. Powell                      December 25, 2018                         (nbcnews.com)

• In 2017, an enigmatic object from beyond our solar system, named Oumuamua (depicted above), startled astronomers when it came streaking past the sun. In November 2018, Avi Loeb, the head of the astronomy department at Harvard University, co-wrote a paper with a post-doctoral student, Shmuel Bialy, reporting that Oumuamua is so unusual that scientists should consider the possibility that it could be an interstellar craft built by extraterrestrials. Oumuamua is a Hawaiian word meaning “messenger from the past.”

• Some of Loeb’s colleagues were intrigued. Others were disconcerted. But suddenly mainstream scientists were seriously talking about alien spaceships. Loeb is well aware that most scientists recoil from anything that sounds like UFO craziness. But he believes an overabundance of skepticism has cut them off from out-of-the box ideas. Says Loeb, “Why have a prejudice? Why argue that it must be natural? What do we gain, other than putting blinders on our eyes?”

• Penn State astronomer Jason Wright shares Loeb’s desire for open discussion. “There’s a real culture change. SETI (the search for extraterrestrial intelligence)is becoming a serious scientific discipline,” he says. Wright raises the possibility that a now-defunct alien civilization may have left behind artifacts on the moon where they could have survived, even if deposited there billions of years ago. Almost all such searches are destined for failure, Wright says, and all it takes is one success to change the world.

• Oumuamua’s unusual trajectory meant it had to have come from outside the solar system — and that it could have been traveling for millions of years. “It’s very elongated, with an axis ratio of at least 7 to 1,” astronomer Karen Meech of the University of Hawaii said. It’s at least seven times as long as it is wide — shaped like a cigar. Or, as Loeb proposes in his paper, maybe a flattened disk. At only 1,000 feet long it is too small to be a comet. And it has no distinctive comet tail. Also, it seems to be much more reflective than the typical comet.

• The biggest puzzle about Oumuamua was the way it moved. (see previous ExoNews article here) As it zoomed away from the sun, it sped up slightly, as if given an invisible push. Comets often accelerate that way when gases boil off their surface under heat from the sun. But observations by the Spitzer Space Telescope showed no such material coming off of Oumuamua.

• At this point, Loeb thought it was time to consider a more radical interpretation. Perhaps Oumuamua isn’t a comet at all, and that the acceleration was caused not by boiling gases but by the pressure of sunlight against a very wide, thin lightweight structure. Loeb and Bialy suggested that such an object could be technological debris or even “a fully operational (alien) probe.”

• Loeb anticipated a harsh reaction to his paper. One anonymous researcher disparaged the Bialy and Loeb paper as “irresponsible,” and “just out to grab attention.” Loeb shrugs off the reflexive dismissals, saying that his lofty academic position actually obligates him to be a pot-stirrer, “I can say these things other people can’t because I have tenure at Harvard. The whole idea of getting tenure is to allow you to be free in your mind. I used the opportunity of Oumuamua to make a statement.” “All I’m doing is following the standard scientific process, looking for explanations,” Loeb says.

 

Last year, an enigmatic object named Oumuamua startled astronomers when it came streaking past the sun, giving humanity its first close-up look at an object from beyond our solar system. This year, the interstellar visitor did something even more remarkable: It made it respectable to talk about alien spaceships.

The turning point came in November, when Avi Loeb, the head of the astronomy department at Harvard University, co-wrote a paper saying that Oumuamua is so unusual that scientists should consider the possibility that it’s not a far-out comet or asteroid, as his colleagues assumed, but rather an artificial structure.

                              Avi Loeb

In other words, maybe it’s an interstellar craft built by extraterrestrials.

Some of Loeb’s colleagues were intrigued. Others were disconcerted. But suddenly mainstream scientists were talking about how to tell if Oumuamua is a natural object or — as Loeb raised as a possibility in his paper — an alien spacecraft designed to capture the force of sunlight (a so-called lightsail).

Loeb is well aware that most scientists recoil from anything that sounds like UFO craziness, but he believes an overabundance of skepticism has cut them off from out-of-the box ideas. “The point of doing science is not to have a prejudice,” he says. “A prejudice is based on the experience of the past, but if you want to allow yourself to make discoveries, then the future will not be the same as the past.”

                 Shmuel Bialy

Jason Wright, a Penn State astronomer who recently launched a graduate program in SETI (the search for extraterrestrial intelligence), shares Loeb’s desire for open discussion — and offers an upbeat assessment of the field’s growing respectability. “There’s a real culture change. SETI is becoming a serious scientific discipline,” he says.

STRANGE VISITOR FROM THE STARS

It was clear from the start that Oumuamua (pronounced oh-MOO-uh-MOO-uh) would shake up astronomy’s status quo. Shortly after its discovery, scientists realized that the object’s unusual trajectory meant it had to have come from outside the solar system — and that it could have been traveling for millions of years. They quickly dubbed the mysterious object Oumuamua, a Hawaiian word meaning “messenger from the past.”

There were more surprises. Oumuamua was too far away for astronomers to observe its shape directly, but they could tell by the extreme way its brightness shifted as it tumbled through space that it wasn’t like any space rock they had ever seen.
“It’s very elongated, with an axis ratio of at least 7 to 1,” astronomer Karen Meech of the University of Hawaii said in an email. In other words, it’s at least seven times as long as it is wide — shaped like a cigar, perhaps. Or, as Loeb proposes in his paper, maybe a flattened disk.

Astronomers’ models predict that most of the small bodies wandering in interstellar space are comets. But when Meech and others examined it, Oumuamua showed no sign of the expected comet-like tail. It’s also quite small, on the order of 1,000 feet long, and it seems to be much more reflective than the comets we know.

Intrigued by its oddities, several groups of SETI researchers listened for possible radio transmissions from Oumuamua — and heard nothing.

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NASA, Harvard, and the Pentagon Are All Taking UFOs Seriously Now

by Alex Hollings                   December 12, 2018                     (thenewsrep.com)

• The idea of alien life is continuing to gain acceptance among the world’s preeminent scientists and experts.

• NASA – Silvano Colombano, a researcher at NASA’s Ames Research Center, made international headlines with his assertion that our planet may have been visited by extraterrestrial life, just not in a form we readily comprehend. Colombano later explained that the intent of his analysis was to get people to take the concept of aliens visiting earth a bit more seriously than our culture permits. “My perspective was simply that reports of unidentified aerial phenomena should be the object of serious study,” he said.

• The Pentagon – A year ago, the New York Times broke the story that the Pentagon earmarking some $22 million for the Advanced Aviation Threat Identification Program, which was devoted specifically to investigating UFO sightings made by U.S. military personnel. Among the sightings the Pentagon had investigated was the now infamous “Nimitz incident,” which saw U.S. Navy F/A-18 Super Hornets scrambled on multiple occasions to intercept UFOs in the airspace around the USS Nimitz aircraft carrier strike group.

• Harvard – This has also been a time of impressive scientific discoveries pertaining to exoplanets, some that Harvard scientists believe could potentially harbor life with technology so advanced, we humans struggle to comprehend what it could even be. A series of repeating Fast Radio Bursts (FRBs) that have been recorded from a specific distant galaxy has led to a debate between scientists who simply can’t come up with a plausible explanation for the immense amount of energy being released with each burst.

A more recent Harvard paper contends that a cigar-shaped object called ‘Oumuamua that entered into our solar system from deep space last year may have actually been artificial. “‘Oumuamua may be a fully operational probe sent intentionally to Earth vicinity by an alien civilization,” a Harvard paper asserted, citing the celestial body’s apparent acceleration as it departed our solar system as evidence. It propelled itself forward more so than gravitational assistance and the release of gasses or water vapor would allow.

 

This past Monday, a paper written by Silvano Colombano, a researcher at NASA’s Ames Research Center, made international headlines thanks to the paper’s assertion that our planet may have been visited by extraterrestrial life. The ensuing media frenzy, Colombano admits, lost sight of his actual points in favor of exaggerated headlines and click-bait assertions… but the deeper premise remains: the idea of alien life is continuing to gain acceptance among the world’s preeminent scientists and experts.

The paper asserts that alien life may not come in forms we readily comprehend — in fact — it almost certainly would need to be vastly different from life we’ve seen thus far in order to survive the rigors of extended space travel. In keeping with that assertion about the nature of alien life, Colombano extended his line of thinking to the technology they may need to employ in order to traverse deep space.

“Considering further that technological development in our civilization started only about 10K years ago and has seen the rise of scientific methodologies only in the past 500 years, we can surmise that we might have a real problem in predicting technological evolution even for the next thousand years, let alone 6 Million times that amount,” Colombano wrote about the type of technology an alien civilization may utilize.

Since his paper made the global rounds, he has attempted to set the record straight about his analysis; explaining that his real intent was to get people to take the concept of aliens visiting earth a bit more seriously than culture permits at present.

“My perspective was simply that reports of unidentified aerial phenomena should be the object of serious study, even if the chance of identification of some alien technology is very small,” he explained.

Within the pockets of the internet devoted to UFO’s, alien life, and the government conspiracies that always seem to accompany them, none of Colombano’s assertions were all that new or original. The ideas that alien life may not be carbon based, would need to possess technology too great for us to imagine, and could be visiting us here on planet earth, are all old tropes for their community. To be honest, even having that signal boosted by a prominent NASA researcher and professor may not have been enough to really ruffle many feathers, but it’s the timing of Colombano’s work that’s helped garner attention.

His paper, titled, “New Assumptions to Guide SETI Research,” came after a series of notable stories once again catapulted UFOs, or UAPs, as they’re now frequently called (short for Unexplained Aerial Phenomena), back into the cultural lexicon. The first was the New York Times breaking a story about the Pentagon earmarking some $22 million for the Advanced Aviation Threat Identification Program, which was devoted specifically to investigating UFO sightings made by U.S. military personnel. Among the sightings the Pentagon had investigated was the now infamous “Nimitz incident,” which saw U.S. Navy F/A-18 Super Hornets scrambled on multiple occasions to intercept UFOs in the airspace around the USS Nimitz aircraft carrier strike group.

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