There Are At Least 36 Intelligent Alien Civilizations In Our Galaxy, Say Scientists

1

It’s the oldest and the greatest cosmic question of all: is there anybody out there?For years all we’ve had is the Drake Equation to help us understand the question, but no indication of an answer. Now a group of scientists at the University of Nottingham think they’ve come up with a new “cosmic evolution”-based calculation—or, rather, an estimation—that suggests that there are likely to be at least 36 ongoing intelligent civilizations in our Milky Way galaxy.

The Milky Way, home to our Solar System, is estimated to have 100 billion to 400 billion stars, and roughly one exoplanet per star in our galaxy. Published today in The Astrophysical Journal, the new paper examines the likely number of Communicating Extra-Terrestrial Intelligent (CETI) civilizations in the Milky Way. It assumes that intelligent life comes to occur on other planets much as it has done on our own planet.

It actually makes a lot of assumptions. Indeed, way too many assumptions for some that doubt its generous conclusions.

A key assumption is that it takes around five billion years for intelligent life to form on other planets, as it does on Earth, but that life is probable. That’s a big assumption, for sure. Another is that a technological civilization will last at least 100 years—as ours has, thus far. After all, it took 4.5 billion years of evolution before a technological civilization arose on Earth, and was capable of communicating.

The number of civilizations depends strongly on how long they are actively sending out signals of their existence into space—such as radio transmissions from satellites and TV.

728x90

The calculation—which says that there could be 36 active communicating intelligent civilizations in our home galaxy on 4.5-billion years old (or more) Earth-like planets around Sun-like stars—is called the “Astrobiological Copernican Limit” by the researchers. It takes into account:

  • star formation histories.
  • how common metal-rich stars are (like the Sun).
  • the likelihood of stars hosting Earth-like planets in their habitable zones.

“The classic method for estimating the number of intelligent civilizations relies on making guesses of values relating to life, but opinions about such matters vary quite substantially,” said Tom Westby, Assistant Professor, Faculty of Engineering at the University of Nottingham, and lead author on the paper. “Our new study simplifies these assumptions using new data, giving us a solid estimate of the number of civilizations in our galaxy.”

The estimation of at least 36 civilizations is based on a very positive outlook on how, where and why life comes into being, and there’s also a wide errorbar. It could be that many, many more alien civilizations exist. It could also be that none exist.

However, the authors note that the average distance to one of these 36 civilizations is around 17,000 light-years, so detection and communication is currently impossible.

There’s also the thorny question of how long intelligent civilizations tend to survive.

“Searches for extraterrestrial intelligent civilizations not only reveals the existence of how life itself forms, but also gives us clues about how long our own civilization will last,” said Christopher Conselice, Professor of Astrophysics at the University of Nottingham, who led the research. “If we find that intelligent life is common then this would reveal that our civilization could exist for much longer than a few hundred years.”

“Alternatively, if we find that there are no active civilizations in our galaxy it is a bad sign for our own long-term existence.”

Wishing you clear skies and wide eyes.

Follow me on Twitter or LinkedIn. Check out my website or some of my other work here.

I’m an experienced science, technology and travel journalist interested in space exploration, moon-gazing, exploring the night sky, solar and lunar eclipses, astro-travel, wildlife conservation and nature. I’m the editor of WhenIsTheNextEclipse.com and the author of “A Stargazing Program for Beginners: A Pocket Field Guide” (Springer, 2015), as well as many eclipse-chasing guides.

Source: https://www.forbes.com

How are we looking and listening for intelligent life? Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub

5 Mysterious Things In Mars Caught On Camera By Nasa – Top 5s Finest

If you thought planet Earth was the only place where life existed, then you are quite mistaken. There’s life on Mars, though at a microbial level. Admittedly, there has been a lot of back and forth from NASA and some alien hunters on the truth of this. As the debate rages on, at Top 5’s finest, we show you 5 Mysterious Things In Mars Caught On Camera By Nasa! Lets begin!

1. Star Destroyer From Star Wars Conspiracy theorists really shocked earthlings on this one in 2015 when they ‘saw’ the Star Destroyer from Star Wars on Mars. Though NASA is usually silent on such matters in a way that adds speculation to the theory that they are covering up proof of an alien civilization, this one they had to respond. One of their scientists working on the Mars Curiosity Project, dispelled this when he stated that mars could support life, but only at a microbial level. I know…It’s a bummer for all those planning to move there. Scientists attribute this seeing of objects on Mars to a mind trick they call Pareidolia. Tell that to the alien hunters if you dare!

2. Barack Obama’s Face This one is quite funny…but must be included: Barack Obama’s head….Really? In 2005, UFO experts zoomed on a rock that appeared, in a strange way, to look like Obama’s head. The image was caught by NASA’S Spirit Rover which had been stuck on Mars, without signal, since 2009 and started being active in 2010. The rock from which the image was taken is believed to be part of a statue. Scott Waring of the UFO sightings blog says that it is a full statue, buried from the shoulders. Some cheeky alien hunter must have digitally altered the image and cleaned it up using a computer program and claimed to have found Obama’s face! Very naughty indeed.

3. The Classic “Face on Mars” If you don’t know it yet, the Face on Mars shocked the world in 1976. Its fame is evident by the television, movies and books that have been written about it. Unlike most photos taken from space and used by alien conspiracies, this one was not quickly dismissed. It was thought, by at least at the time, that the face on Mars could be a potential alien relic. NASA was quite quick to refute the assumptions stating that the illusion was created by shadows and a light. The public could hear none of it but held to the fact that it was an alien civilization. In 1998, more details were taken on the Face of Mars and it was confirmed to be just an optical illusion.

4. An Alien Skull (Perhaps Bigfoot) In the alien hunter’s world, this is called an alien skull. It is no ordinary alien skull but is one that looks like Bigfoot. All the speculation arose from the YouTube channel Paranormal Crucible where they wrote, “Strange artifact found by the rover, appears to resemble a large skull, obviously alien in nature…”The speculation is that it could be Bigfoot or a bizarre Martian creature. Who knows? Maybe we will find out in 20 years later from now.

5. “Marshenge” You must have guessed the source of this name by now! Does the Stonehenge from Wiltshire, England ring a bell? At this point, It must have crossed your mind that the Stonehenge from Britain was first built by aliens who were first living on Earth! Too late! The alien hunters had already proposed that. The experts don’t agree. Science shows that natural processes can cause rocks to form in circles. The author of UFO Investigations Manual agrees. He said that it was quite a huge leap of imagination to compare “Marshenge” with the likes of Stonehenge.

With the mystery that lies in Mars, there’s really no way of knowing what these really are. They could even be random stones cast by marsquakes- you know, the equivalent of earthquakes. Background Music: Kevin MacLeod ~ Seventh Seal : https://www.youtube.com/watch?v=-PqKa…

For copyright matters please contact us: OfficialAmerikano@hotmail.com

Thank you so much for watching! Smash that like button for more, make sure you share the video with your friends and dont forget to subscribe! Make sure to follow me here: https://twitter.com/Top5sFinest

 

 

 

 

 

Your kindly Donations would be so effective in order to fulfill our future research and endeavors – Thank you

5 NASA Videos You Are Forbidden From Watching – Top 5s Finest

Many people think that NASA is up to no good. You’ve got your flat Earther’s who say that the whole round Earth thing is a hoax and that it’s designed to keep you from knowing the real truth, which is that NASA likes to use a lot of CGI and none of their space missions are real and it’s all just an illusion to keep getting their 0.5% of the United States federal budget.

Is NASA trying to hide things from us about the planet and outer space? And are aliens real and has NASA been in contact with them? According to some people, the answers to these questions are a resounding ‘yes’. We found some really interesting things that NASA might be hiding from all of us. With that said, check out these 5 Nasa Videos You Are Forbidden From Watching! 5.

Hollow Earth 4. UFO entering the Earth’s atmosphere 3. Earth-Size Alien UFO 2. Alien base on the moon 1. Nasa Hiding Aliens For copyright matters please contact us: OfficialAmerikano@hotmail.com

WORK FOR TOP 5S FINEST: https://goo.gl/Su8DZQ FOLLOW US ON TWITTER: https://twitter.com/Top5sFinest LIKE US ON FACEBOOK: https://www.facebook.com/TheFinestPost/ Background Music: Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License: https://creativecommons.org/licenses/…

 

 

 

 

 

 

Your kindly Donations would be so effective in order to fulfill our future research and endeavors – Thank you

%d bloggers like this: