Aliens on Enceladus: Chances of E.T. Living in Subsurface Ocean of Saturn’s Icy Moon Given Major Boost

Hannah Osborne,Newsweek

Scientists have discovered that a subsurface ocean on Enceladus could have existed for billions of years, providing plenty of time for microbial alien life to emerge and evolve.

One of Saturn’s icy moons, Enceladus is considered one of the best bets for finding extraterrestrial life within our solar system. Geophysical evidence has long suggested it boasts a salty, liquid ocean between its frozen shell and rocky core. Scientists believe the ocean exists as the result of heat generated by hydrothermal activity the moon’s interior.

NASA has been considering a mission to Enceladus to search for evidence of alien life for several years, although no confirmed plans are in place.

Trending: How Life Began: Missing Link Chemical in First Living Cell Discovered

11_06_EnceladusImage of Enceladus’ surface taken from the Cassini spacecraft. NASA/JPL/Space Science Institute

In a study published in Nature Astronomy, an international team of scientists looked data from NASA’s recently completed Cassini mission to better understand what is going on within Enceladus’ that allows it to have a sustained, global ocean. If it was just being heated by tidal forces within the ice, the ocean would freeze over in less than 30 million years. But they now know this is not the case—so something else must be heating the ocean.

Researchers looked at different ways Enceladus could be generating the heat to maintain the liquid ocean, producing models to find one that fits with Cassini observations. Their findings indicate that the additional heat is the result of Enceladus’ core being highly porous.

Water moving through the porous rock is heated then transported up through narrow upwellings, with temperatures exceeding 90 degrees Celsius. The team also found these hotspots are particularly prevalent at the moon’s south pole, which explains why the ice seems thinner at this point. Further analysis showed that this heating mechanism could be sustained for tens of millions, if not billions of years.

 

11_06_EnceladusEncelauds has a global ocean sitting between its icy shell and rocky core. NASA

One of the most prevalent theories as to how life evolved on Earth is through chemical reactions at deep sea hydrothermal vents. The presence of hydrothermal activity in Enceladus that could last for such a long time has major implications for the potential for life to evolve. If Enceladus has had a liquid ocean for billions of years, life would have had the chance to emerge and evolve into a more complex form.

In an email interview with Newsweek, lead author Gaël Choblet, from the French National Center for Scientific Research, said that while he cannot speculate on the presence of alien life on Enceladus, their timescale for hydrothermal activity does bolster the case that microbial life could emerge.

If a new theory published last year is correct, then powerful hydrothermal activity could have been occurring since the formation of the moon, possibly as much as the age of the solar system,” he says, adding that which timescale they are working on—tens of millions or billions—could be determined with future research

He said the team now plans to simulate the chemical interactions within Enceladus and to work out how heat and chemicals are transported around the ocean.

Ravi Desai, from Imperial College London, U.K.,has previously looked at the chemistry of Enceladus’s ocean. Commenting on the latest study, which he was not involved in, he says the findings represent “excellent news” for the possibility of detecting microbial life deep in the ocean.

11_06_EnceladusIllustration shows NASA’s Cassini spacecraft diving through the plume of Saturn’s moon Enceladus. NASA/JPL-Caltech

“These findings from Enceladus are highly relevant to exploring the icy moons of Jupiter … [The] results are particularly exciting when considering what could be discovered at Europa and Ganymede.”

David A Rothery, professor of Planetary Geosciences at the Open University, U.K., also says the findings are exciting as “it all fits together”—Cassini observations have now been reconciled with a suitable model of heat transfer within Enceladus. In terms of the potential for life, he said the only possible drawback is that due to its size, it only take about 250 million years for the entire ocean to be recycled through the rock—and once this is done, the number of chemical reactions that take place becomes very limited.

“But this is still happening at the moment because we’re seeing the products,” he says. “Chemical reactions are going on even today. If it’s going on today it could have been going on a billion years into the past, and that’s long enough for life to get started—and to have evolved beyond the very most basic stages. It could be quite a complex microbial community down there and we’d love to study it.”



Aliens are actually immortal robots, and they’re billions of years old, researcher claims

Rob Waugh

 

 

https://www.kiwano.co/?tap_a=21185-d47776&tap_s=127557-b8c1ba

Hawking urges Moon landing to ‘elevate humanity’

By Pallab Ghosh

Image result for journey to the moon
Prof Hawking says: “If humanity is to continue for another million years, our future lies in boldly going where no one else has gone before.”
Prof Stephen Hawking has called for leading nations to send astronauts to the Moon by 2020.
They should also aim to build a lunar base in 30 years’ time and send people to Mars by 2025.
Prof Hawking said that the goal would re-ignite the space programme, forge new alliances and give humanity a sense of purpose.
He was speaking at the Starmus Festival celebrating science and the arts, which is being held in Trondheim, Norway.
Spreading out into space will completely change the future of humanity
Prof Stephen Hawking
“Spreading out into space will completely change the future of humanity,” he said.
“I hope it would unite competitive nations in a single goal, to face the common challenge for us all.
“A new and ambitious space programme would excite (young people), and stimulate interest in other areas, such as astrophysics and cosmology”.
Moon LandingsImage copyrightNEIL A. ARMSTRONG
Image caption
Return of the Moon landings would give humanity “a sense of purpose”.
He addressed the concerns of those arguing that it would be better to spend our money on solving the problems of this planet along with a pointed criticism of US President Donald Trump.
“I am not denying the importance of fighting climate change and global warming, unlike Donald Trump, who may just have taken the most serious, and wrong, decision on climate change this world has seen,” he said.
Prof Hawking explained that human space travel is essential for the future of humanity precisely because the Earth was under threat from climate change as well as diminishing natural resources.
“We are running out of space and the only places to go to are other worlds. It is time to explore other solar systems. Spreading out may be the only thing that saves us from ourselves. I am convinced that humans need to leave Earth,” the Cambridge University theoretical physicist explained.
Image result for journey to the moon

The head of the European Space Agency (Esa) Jan Woerner has said he envisages the construction of a Moon base to replace the International Space Station in 2024 and is collaborating with Russia to send a probe to assess a potential site. China has set itself the goal of sending an astronaut to the Moon.
Nasa has no plans to return to the Moon, instead focusing its efforts on sending astronauts to Mars by the 2030s. Though if other space agencies begin to collaborate on constructing a lunar base it would be hard to see Nasa not participating.
Prof Hawking said that there was no long-term future for our species staying on Earth: it would either be hit by an asteroid again or eventually engulfed by our own Sun. He added that travelling to distant worlds would “elevate humanity”.

Media captionIn this European Space Agency video Dr James Carpenter describes the landing site
“Whenever we make a great new leap, such as the Moon landings, we bring people and nations together, usher in new discoveries, and new technologies,” he continued.
“To leave Earth demands a concerted global approach, everyone should join in. We need to rekindle the excitement of the early days of space travel in the sixties.”
He said that the colonisation of other planets was no longer science fiction, though he did pay tribute to the genre in his closing remarks.
“If humanity is to continue for another million years, our future lies in boldly going where no one else has gone before.
“I hope for the best. I have to. We have no other option”.

Are Aliens Really Just 94 Light Years Away? A ‘Strong Signal’ Might Just Mean Yes

Dan Seitz,UPROXX 


First contact: how we’ll get the news that we found aliens

Image result for alien contact

Cathal O’Connell explains the challenges that will face scientists when they break the biggest news story in history.

However unlikely contact with aliens may be, scientists are thinking about how they would break the news to a nervous planet.CREDIT: AARON FOSTER/GETTY IMAGES

Detecting a signal from an extraterrestrial intelligence would be life changing for everyone on Earth – the biggest news story in history – and could potentially be dangerous, especially if badly handled.

Writing in the journal Acta Astronautica, scientists at the Search for Extra Terrestrial Intelligence (SETI) institute describe a protocol for how to break it to the world that we’re not alone in the Universe – without causing global mayhem.

Rather than a conspiracy of government cover-ups so beloved of sci-fi writes, the study strongly recommends openness as the key to having a “sane global conversation” about the discovery of ET.

Nobody knows how the world would react to the discovery of extraterrestrial intelligence. All we have to go on are the bizarre occurrences where the public thought they were hearing such news.

In 1938 Orson Welles’ radio-play based on HG Wells’s novel The War of the Worlds caused widespread panic in the United States (although the scale of that panic was likely exaggerated). In 1949, a Spanish language version of the same program incited rioting in Ecuador, leading to at least seven deaths, and possibly as many as 20.

Then there’s the risk of the media misreporting or exaggerating the importance of a tentative signal. In October 2015, for example, when a newly discovered extrasolar planet, KIC 8462852, was discovered to show a periodic dip in brightness, the mainstream media latched on to the most speculative, and least likely, explanation – namely that an “alien megastructure” was passing in front of its star. (The periodic dimming is more likely caused by a cloud of comets passing by.)

As a result of these excesses, scientists have been worried about how to break SETI news for decades.

In 1989, the International Academy of Astronautics drew up a set of guidelines for releasing information about a potential alien signal. But that was before the internet and social media transformed the way we consume news stories.

Now, Duncan Forgan and Alexander Scholz, from the University of St Andrew’s in Scotland, have prepared an updated protocol for how scientists should navigate the “unprecedented media onslaught”.

First, Forgan and Scholz advise, all scientists performing a SETI experiment should clearly outline their search methodology as well as define what makes a “discovery”, before the search even begins. This information should be published in a format the media can easily access, such as a blog post.

Then if a signal is detected, the discoverers should not to try to keep it under wraps – the potential fall-out from a leak would be too damaging. Much better to announce a tentative detection, but be clear that it must be assumed to be of natural or manmade origin until proved otherwise.

The scientists should submit their findings to a peer-reviewed journal, while simultaneously uploading all data so it can be pored over by other scientists – and potential known sources ruled out.

The problem is these verifications can take a long time. The best case-study is the so-called “Wow” signal, detected in 1977. That signal was exactly what SETI scientists had been looking for – being at the right frequency to hold an interstellar conversation, and being of unprecedented strength – and is still unexplained almost 39 years later. (Although in early 2016, a study published by the Washington Academy of Sciences suggested that comets could emit such a signal, and identified two comets that were in the right place at the right time in 1977. Future measurements of radio emission by comets should hopefully clear this up.)

In the case where the detection cannot be confirmed, say Forgan and Scholz, the SETI scientists should publish an announcement saying so.

In the case of the detection is confirmed, however, the SETI scientists should become deeply involved in the global conversation by engaging across as many social media platforms as possible – a role they would likely assume for the rest of their lives. They should also be prepared for the downsides of newfound fame – such as cyber attacks.

The latest polls (conducted in Germany, the UK and US last September) show that most people in developed countries believe intelligent aliens exist somewhere in the Universe. But that doesn’t mean we’re ready for a “first contact” event.

However unlikely such a discovery is, a signal from an alien intelligence would be the most momentous discovery the human species is ever likely to make. It’s worth a little thinking ahead.

Here’s The Real Difference Between Sativa & Indica Pot Strains

This article was originally published on May 27, 2015.

Now that pot legislation is making its way across the country, it’s time for a refresher on the difference between the main types of marijuana strains: indica and sativa. It’s a lesson some of us have had to learn over and over again. But, this infographic from the recently-released Green: A Field Guide To Marijuana will help us get it right.

At a basic level, we may be aware that sativa strains produce a sort of “up” high that gives users a feeling of euphoria, increased creativity, and energy. Meanwhile, indica strains usually leave us relaxed and “in-da-couch.”

But, as the infographic shows, the differences start with the shape of the plants: Sativas tend to have longer, thinner leaves and are lighter in color. Indica strains, meanwhile, often have shorter, fatter leaves and dark, dense buds.

And then, of course, there’s a whole host of hybrid strains that may produce a high that’s between the two ends of that spectrum. But, when they’re up-close — like in Erik Christiansen’s photos in the book — the differences are easy to spot. Check out the full infographic, below.

IMAGE: COURTESY OF GREEN: A FIELD GUIDE TO MARIJUANA BY DAN MICHAELS, PHOTOS BY ERIK CHRISTIANSEN, PUBLISHED BY CHRONICLE BOOKS.
Refinery29 in no way encourages illegal activity and would like to remind its readers that marijuana usage continues to be an offense under federal law, regardless of state marijuana laws. To learn more, click here.
PHOTO: COURTESY OF ERIK CHRISTIANSEN.

Did Aliens Leave Behind This 2,800-Year-Old Nokia?

E.T. forgot his phone.

Researchers are claiming they have dug up what looks like a 2,800-year-old Mesopotamian clay tablet cell phone, reportedly found in the Austrian town of Fuschl am See. (Judging by the picture quality, the photos were also taken on a 2,800-year-old cell phone.)

According to the very reputable mysteriousuniverse.org, not much is known about what archaeologists were looking for when they came across this piece of not-so-terrestrial history, but it probably wasn’t clay Sumerian tablets from the 13th century BCE.

How did a cuneiform tablet make its way to modern-day Austria, you ask? After all, Mesopotamia never expanded north or west of modern-day Turkey. Well, the theory proposes that aliens created Sumerian civilization, then left the artifact behind after a failed attempt to introduce people to the great communicative powers of cellular phones.

Sadly, like Damascus steel, the technology to make functioning clay cell phones is still not known.

[via The Daily Dot]

From: Popular Mechanics

Why So Many People Are Reading This Old FBI Memo About UFOs

The most-viewed FBI file on UFOs is a one-page memo to J. Edgar Hoover about an investigation the agency never took up.​

Whether or not you believe in Earthly visitation by alien beings, it’s undeniable that UFOs have, at the least, become an essential part of modern day folklore. And in a bevy of stories that have added on to that treasure trove of fantastic tales, there’s one document that, according to Atlas Obscura, has become the most popular FBI file among UFO truthers.

The document is just called “Guy Hottel,” named after an agent in an FBI field office. It’s publicly available on the FBI Vault website, among a handful of other UFO and related cases. In one page, it describes an incident relayed second or third hand of a three separate but related UFO crashes around 1950 in New Mexico, with three alien bodies described as having a “human shape” but only being three feet tall, clothed in a metallic fabric. “Each body was bandaged in a manner similar to the blackout suits used by speed fliers and test pilots,” Hottel said. The craft itself was described as being 50 feet in diameter.

The agency denies that it’s related to Roswell, or that they even seriously investigated it. “Finally, the Hottel memo does not prove the existence of UFOs; it is simply a second- or third-hand claim that we never investigated,” it says. “Some people believe the memo repeats a hoax that was circulating at that time, but the Bureau’s files have no information to verify that theory.”

As Atlas Obscura points out, it’s likely connected to a sort of space age snakeoil peddler namedSilas Newton, whose claims were usually to spurious mining operations along with a series of UFO crash claims. According to TopSecretWriters, Newton finally got caught in 1970 after just under 20 years of FBI investigations for selling land to out-of-state speculators, claiming it had precious ore. Of course, that land just happened to be some of the land he claimed UFOs crashed on. The memo could be related to Newton’s Aztec UFO hoax, one that Newton and an accomplice duped journalist Frank Scully into believing.

Though Newton wasn’t tied to the Roswell incident, it’s interesting to note that Roswell itself hadfallen into obscurity from 1947 until 1978 when Stanton Friedman resurrected it. Most investigations into the matter, after the initial crash of the terrestrial experimental aircraft, took place at that time from second and third hand accounts. In fact, the reason for the crash at Roswell was declassified in the early 1970s, before Friedman’s investigations into the matter.

The FBI rarely touched UFO cases at the time, with the Air Force handling most investigations under Project Bluebook. Bluebook dug up no conclusive proof of UFOs, though a few investigations proved vexxing.

It’s also interesting to note that from the 1920s to the 1950s, New Mexico was ground zero for rocketry research. Robert Goddard carried out much of his early research there, with Nazi rocket engineer turned NASA pioneer Wehrner Von Braun further developing rocketry technology for the nascent American space program at the White Sands Missile Range. In other words, there was a lot going on in the skies of New Mexico for quite some time, and some of it was definitely coming back down from high in the skies.

So there you have it. The Hottel memo was either something so spurious that the FBI passed on investigating it (only relaying it to J. Edgar Hoover because of the director’s paranoia on all things) or obvious evidence of a massive cover-up. But given the actors involved, it’s safe to say it’s the latter. That won’t kill it off for sure, of course. Hillary Clinton allegedly wants to “get to the bottom” of UFO investigations if elected president. Of course, as with Area 51 and Goddard’s work, it could all just be highly classified weapons testing.

The biggest proof of alien life is unlikely to come from Freedom of Information Act releases of long declassified documents. Instead, it’ll probably come from a NASA mission to Mars or Europa, or maybe, just maybe, the Breakthrough Listen Initiative that pumped unprecedented amounts of money into the scientific search for technologically advanced life. But who knows. An alien craft could just fall out of the sky. But it’s not likely.

Source: Atlas Obscura


Does oxygen necessarily mean aliens?

Astrobiologists find that the presence of oxygen in a planet’s atmosphere may not necessarily mean that life exists there.

By Eva Botkin-Kowacki

Scientists and E.T. enthusiasts may have to rethink an allegedly telltale sign that a planet has life.

The presence of oxygen, specifically O2 , in a planet’s atmosphere has long been thought to be a near-certain signal that there are, or at least were, living organisms engaging in photosynthesis on the planet. But new research suggests that oxygen can exist in large quantities without being produced by living things.

A study published Thursday in Scientific Reports found that some planets could have “abiotic” oxygen, produced through a a photocatalytic reaction of titanium oxide

‘Alien Corpse’ Discovered Near Nuclear Power Plant

Andy Wells

Conspiracy theorists are in a bit of a flutter after the discovery of what the believe is an alien corpse near a nuclear power plant.

The odd discovery of the apparent body with a “mysterious skull” in Russia has got UFO hunters excited at what could be evidence of life on other planets.

Either that or it’s a mutant chicken embryo – which is what experts first thought it might have been.

However, scientists believe that if it is a corpse, it isn’t from any known animal on the planet.

One said: “It seems that this body is neither fish nor fowl – this creature has a mysterious skull, no neck and wings.”

Experts from the Institute of Biophysics in Krasnoyarsk, where the body was taken for more tests, are equally baffled.

Biologist Yegor Zadereev said: “Extensive studies are needed to determine what kind of creature or organism it is.”

However, alien hunters are in no doubt what it is – an extraterrestrial.

Scott C Waring, from UFO Sightings Daily, said: “This tiny alien body was found near a river in Russia and has no resemblance to any animal known.

“Russian scientists are confused over what it could be and said they need to wait for the results of the tests, which are probably DNA I assume.”

To be fair, the body does look a bit like the aliens out of the Sigourney Weaver movies.

Though what it was doing poking around a nuclear power plant in the middle of Russia is anyone’s guess…

Pics: YouTube/Flickr

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