Aliens? From Space

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#1 Posted by uninspiredcup (29932 posts) -

Could it be? Is this it? Probably not?

https://www.bbc.co.uk/news/science-environment-46811618

Mysterious radio signals from deep space detected

stronomers have revealed details of mysterious signals emanating from a distant galaxy, picked up by a telescope in Canada.

The precise nature and origin of the blasts of radio waves is unknown.

Among the 13 fast radio bursts, known as FRBs, was a very unusual repeating signal, coming from the same source about 1.5 billion light years away.

Such an event has only been reported once before, by a different telescope.

"Knowing that there is another suggests that there could be more out there," said Ingrid Stairs, an astrophysicist from the University of British Columbia (UBC).

"And with more repeaters and more sources available for study, we may be able to understand these cosmic puzzles - where they're from and what causes them."

The CHIME observatory, located in British Columbia's Okanagan Valley, consists of four 100-metre-long, semi-cylindrical antennas, which scan the entire northern sky each day.

The telescope only got up and running last year, detecting 13 of the radio bursts almost immediately, including the repeater.

he research has now been published in the journal Nature.

"We have discovered a second repeater and its properties are very similar to the first repeater," said Shriharsh Tendulkar of McGill University, Canada.

"This tells us more about the properties of repeaters as a population."

FRBs are short, bright flashes of radio waves, which appear to be coming from almost halfway across the Universe.

So far, scientists have detected about 60 single fast radio bursts and two that repeat. They believe there could be as many as a thousand FRBs in the sky every day.

There are a number of theories about what could be causing them.

They include a neutron star with a very strong magnetic field that is spinning very rapidly, two neutron stars merging together, and, among a minority of observers, some form of alien spaceship.

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#2 Posted by DaVillain- (33688 posts) -

Weapons ready and fire at will on our UFO who will conquer our home!

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#3 Posted by Byshop (19275 posts) -

Key line there:

"They include a neutron star with a very strong magnetic field that is spinning very rapidly, two neutron stars merging together, and, among a minority of observers, some form of alien spaceship."

Radio waves are created by all kinds of natural phenomenon in space. When we hear the word "radio" we tend to think "man made" but there are any number of explanations that have nothing to do with the X-Files.

-Byshop

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#4 Posted by madrocketeer (5980 posts) -

As fun as it is to post the "Aliens" meme every time we find something mysterious in space, these FRBs are very high-energy phenomena, some emitting energy equivalent to a supernova.

So no, not aliens. Very, very unlikely.

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#5 Posted by uninspiredcup (29932 posts) -

@madrocketeer said:

Very, very unlikely.

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#6 Posted by Byshop (19275 posts) -

@madrocketeer said:

As fun as it is to post the "Aliens" meme every time we find something mysterious in space, these FRBs are very high-energy phenomena, some emitting energy equivalent to a supernova.

So no, not aliens. Very, very unlikely.

Even if it were, 1.5 billion light years is a little further than just around the corner. Radio waves travel at the speed of light, so it also means that whatever caused these radio waves caused them 1.5 billion years ago so if it's a message it would be the ultimate necropost.

-Byshop

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#7 Edited by madrocketeer (5980 posts) -

@uninspiredcup:

Well, yeah. Real scientists will tell you that science is not about black-and-white certainties, but probabilities. Anything is possible, but not everything has a realistic probability.

So considering even the basic facts, the probability is astronomically, no pun intended, low. 0.000-many zeroes later-000.1%

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#8 Posted by madrocketeer (5980 posts) -

@Byshop:

Well, you never know. The descendants of whoever sent the message could still be there, chilling on a Dyson Sphere or something.

But again, I must stress, considering the vast amount of energy emitted by these FRBs, it's very unlikely to be artificial in origin.