Why Aliens have not Visited?

[5fish]

Here an article about the theories why Aliens have not visited earth , yet. There is a paradoxical reason... Who knew?

The Cost of Visiting Earth May Be Too Astronomical For Aliens

In 1950, Italian-American physicist Enrico Fermi sat down to lunch with some of his colleagues at the Los Alamos National Laboratory, where he had worked five years prior as part of the Manhattan Project.

www.sciencealert.com

You will have to read article...

 

[5fish]

We can send out mini starships...

Here's one way to find out if there's life out there

A project called Breakthrough Starshot could reveal the secrets of our nearest star neighbors.

www.google.com

 

[5fish]

Where to visit... @rittmeister , @O' Be Joyful

The myths and reality about interstellar travel

Is reaching alien planets outside our Solar System actually possible, and if so, how would it work? Bianca Nogrady explains.

www.bbc.com

Where wouldn’t we go? There are more stars in the Universe than there are grains of sand on Earth – around 70,000,000,000,000,000,000,000 – and billions of these are estimated to have one to three planets in the so-called ‘Goldilocks’ zone: not too hot, not too cold.

Proxima b is in the right temperature range for liquid water, which is a useful proxy for habitability

As we’re just starting out, the best contender so far is our nearest stellar neighbour – the triple star system of Alpha Centauri, 4.37 light-years away. This year, astronomers at the European Southern Observatory discovered an Earth-sized planet orbiting Alpha Centauri’s red dwarf star Proxima Centauri. The planet, named Proxima b, is at least 1.3 times the mass of the Earth but has a very tight orbit around Proxima Centauri, taking just 11 Earth days to complete the trip. What has astronomers and exoplanet hunters especially hot under the collar is that this planet is in the right temperature range for liquid water, which is a useful proxy for habitability.

snip... Here is that project which is basically send a cell phone(with camera) to Alpha Centauri on light-sails... powered by lasers...

Breakthrough Starshot – a $100 million initiative privately funded by Russian billionaires Yuri and Julia Milner – is focusing on propelling a tiny unmanned probe by hitting its extremely lightweight sail with a powerful Earth-based laser. The idea is that if the spacecraft is small enough – and we’re talking barely a gram – and the sail light enough, the impact of the laser will be enough to gradually accelerate the craft to around one-fifth of the speed of light, taking it to Alpha Centauri in around 20 years.

The Milners are counting on miniaturisation technologies to enable this tiny craft to carry a camera, thrusters, a power supply, communication and navigation equipment so it can report on what it sees as it flashes past Proxima b. Hopefully the news will be good, because that will lay the foundation for the next and more difficult stage of interstellar travel: people-moving.

 

[Leftyhunter]

Here an article about the theories why Aliens have not visited earth , yet. There is a paradoxical reason... Who knew?

The Cost of Visiting Earth May Be Too Astronomical For Aliens

In 1950, Italian-American physicist Enrico Fermi sat down to lunch with some of his colleagues at the Los Alamos National Laboratory, where he had worked five years prior as part of the Manhattan Project.

www.sciencealert.com

You will have to read article...

If space aliens rule the Earth they might not do any worse job then the humans have done so why not give them a chance?
Leftyhunter

 

[5fish]

If space aliens rule the Earth they might not do any worse job then the humans have done so why not give them a chance?
Leftyhunter

The past tells us. When an advance society meets more primitive society. The primitive society suffers in many ways.

 

[Leftyhunter]

The past tells us. When an advance society meets more primitive society. The primitive society suffers in many ways.

At this stage the human race is past being screwd so if little green men take over the Earth it might be a good thing.
Leftyhunter

 

[O' Be Joyful]

At this stage the human race is past being screwd so if little green men take over the Earth it might be a good thing.
Leftyhunter

 

[Tom]

We've had big dish antennas up for near 50 years listening for alien chatter without much success. If there are any 'intelligent civilizations' out there they are few are far between. So much so that even if they exist - we will probably never have any contact with them...

Alien hunters detect mystery signal coming from the closest star system

Astronomers hunting for radio signals from alien civilizations have reportedly detected an "intriguing signal" from the direction of Proxima Centauri, the nearest star system to the sun.

www.livescience.com

The Wow signal...

| EarthSky

New evidence suggests the well-known Wow! signal from 1977 - long thought by some to be a sign of extraterrestrial life - was in fact generated by a passing comet.

earthsky.org

 

[Tom]

"Alien abductions"

Have any of these people ever managed to pick up an alien book and stick it in their pocket? Alien tool? Even an alien paper clip?

 

[O' Be Joyful]

"Alien abductions"

Have any of these people ever managed to pick up an alien book and stick it in their pocket? Alien tool? Even an alien paper clip?

 

[Wehrkraftzersetzer]

You all are aliens trying to steal my precious planet

go home

 

[5fish]

Here is a thought....

 

[5fish]

 

[5fish]

 

[5fish]

Who will Aliens first meet...

taikonaut (plural taikonauts) A person who travels in space for the Chinese space program; a Chinese astronaut. [
https://en.m.wiktionary.org › wiki
taikonaut - Wiktionary

 

[5fish]

Who will Aliens first meet...

taikonaut (plural taikonauts) A person who travels in space for the Chinese space program; a Chinese astronaut. [
https://en.m.wiktionary.org › wiki
taikonaut - Wiktionary

Or this one...

An astronaut (from the Greek "astron" (ἄστρον), meaning "star", and "nautes" (ναύτης), meaning "sailor") is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft.
https://en.m.wikipedia.org › wiki
Astronaut - Wikipedia

Or this one...

More specifically, “astronaut” refers to those from the United States, Canada, Europe, and Japan who travel into space. Those Soviet and later Russian individuals who travel into space are known as cosmonauts (from the Greek words for “universe” and “sailor”).
https://www.britannica.com › topic
astronaut | Definition, Facts, & Training | Britannica

Or this...

Not so long ago, people in space were either astronauts or cosmonauts. ... The closest Sanskrit word to astronaut would have been vyomagami, for something that passes in the sky. The other word for an Indian spacefarer that had been bandied about was gaganaut (gagan is also Sanskrit for sky).Jan 5, 2010
https://www.newscientist.com › ...
Wanted: four 'vyomanauts' for Indian spaceflight | New Scientist

 

[Wehrkraftzersetzer]

there is a wonderful piece why not but is not even real German it is Austrian.

shall I?

 

[Tom]

"Why Aliens have not Visited?"

Because there ain't any.

 

[Wehrkraftzersetzer]

"Why Aliens have not Visited?"

Because there ain't any.

acc Your talking there are even some from the Estados unidos Mexicanos

 

[5fish]