Alien life, has it ever visited?

[Mr. Dazzle]

There are also much duller technical reasons. Even here on Earth we don't really broadcast out into space any more, after only about 100 years of having done so. We don't need to, we developed methods of only broadcasting information to the intended recipient, thus saving loads of power. Aliens are probably the same.

NASA have run serious trials to see if they can use probes which fly by Earth* to detect proof of out civilization The idea being, see how good we are at detecting a civilization which we know exists. Despite the fact we absolutely know there's life down here, the probes did not detect it with resounding proof It was only the presence of narrow band radio emissions which gave us away with any kind of certainty, if they'd flown past 200 years earlier the probe would have missed us.

https://theconversation.com/carl-sagan- ... ady%20know.

*It's quite common for probes on their way to Mars, Venus, the Sun etc. to fly close by Earth one or more times on their journey, such is the weirdness of orbital mechanics

[Flux]

Alien life, almost certainly, it would be arrogant to assume we are unique. Have we been visited, much less likely due to timing, as already mentioned the life would have needed to atained the ability for interstellar travel during the time we've been here/sentient which I'm not convinced about. Chariot of the gods is a good read (or it was when I was about 12) which talks about ancient technology and how incredibly accurate certain structures were made and things like Nasca lines not making sense from ground level, it poses the question was God an alien?
Which I've got to admit seems more likely to me than some omnipotent being that lives in the sky..

[Mr Moofo]

Alien life - yes - based on probability alone
Interstellar travel. Kind of arrogrant to assume we are cleverer than them. Maybe we just don't have anything they need/ want/ or they have better thing to do.

Then again, maybe we are just a glofied SIM. After all, where is the the Universe ? what does it exist in? Can it just "exist"?

[Horse]

Re 'visited', there are views that life on Earth was seeded by asteroids. Which makes us all non-native, so we should all be deported.

[Count Steer]

Chariot of the gods is a good read (or it was when I was about 12) which talks about ancient technology and how incredibly accurate certain structures were made and things like Nasca lines not making sense from ground level, it poses the question was God an alien?
Which I've got to admit seems more likely to me than some omnipotent being that lives in the sky..

Ah yes Erich von Däniken. I lapped it up at the time*.

He's been thoroughly debunked. The Wiki entry on him lists quite a lot rather problematic things in his books. Bit of a character though.

*(I did wonder why aliens needed runways though as I assumed flying saucers were VTOL. ).

[Taipan]

I’d say yes they have in all probability. We can’t even explain infinity so we’re pretty much the galactic version of Truman’s World.

[Buckaroo]

EvD sits alongside Alex Hailey Roots as great works of fiction based upon various facts. Poetic licence gone mad.

I too was a sucker for this genre of now debunked books. Oh the naivety of youth!

[Taipan]

The latest press release from the USAF of its F35 encounter with a UFO is pretty conclusive!

[wull]

The latest press release from the USAF of its F35 encounter with a UFO is pretty conclusive!

[demographic]

I kind of took it that Fermi was basically just trying to get bedsit physicists and young people interested, cos after all he was a physicist and knows the main issue for all of this and I think it was mentioned in about the second post.
Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.

[KungFooBob]

Is it bigger than a breadbox?

[Cousin Jack]

Is it bigger than a breadbox?

Oh yes, big as a house!

[Dodgy69]

The latest press release from the USAF of its F35 encounter with a UFO is pretty conclusive!

Advanced lifeform that, both genders in one.

[Cousin Jack]

The latest press release from the USAF of its F35 encounter with a UFO is pretty conclusive!

Advanced lifeform that, both genders in one.

What do you mean 'both'? Most of them have 5 or more, one species has 17.

[The Martian]

Have I been forgotten so quickly?

The Younger Dryas impact theory is an interesting one; mankind has previously developed to a high level but society was virtually wiped out by asteroid strike ,- similarly to the dinosaurs but not as drastic.

The most likely place for "aliens" is in our distant past and from this planet.

[Yambo]

A few years ago I was having a beer in the Palette bar, doing a bit of people watching. The people were mostly tourists from Marmaris visiting from a boat trip. Mostly fat, tattooed and mouthy the blokes were even worse.

However, 3 lassies walked past wearing bikinis who were . . . well, out of this world. There's no way that 3 products of this planet could ever look so good.

[wull]

Mostly fat, tattooed and mouthy the blokes were even worse.