Mysterious radio signals from deep space detected

[redmanjp]

if it's random noise it's just the universe doing stuff- if there's a pattern to it then only some type of intelligent life can do that

[88sins]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

[wickedtuna]

Yes trinidad does have dem kinda ting to ....blight year ....btw star trek discovery resume yet?

[Duane 3NE 2NR]

Yes trinidad does have dem kinda ting to ....blight year ....btw star trek discovery resume yet?

Season 2 starts on January 17th

[shogun]

[airuma]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

Unknown source, unknown location but we can determine how far it is?

[Duane 3NE 2NR]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

Unknown source, unknown location but we can determine how far it is?

The article stated 1.5B light years away, not sure how they calculated that

[toyota2nr]

Possibly pulsar or magnetar but what makes this significant is that the signal is repeating. This can probably assume intelligence but we may never know for sure.

[airuma]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

Unknown source, unknown location but we can determine how far it is?

The article stated 1.5B light years away, not sure how they calculated that

If there are multiple telescopes, I guess they can approximate the diameter of the progression and extrapolate the point source.

[hydroep]

Based on the limitations of our own technology, any artificial transmission beamed from that distance would have probably dissipated before reaching us, hence the reason skeptics doubt any sort of "intelligence" is behind it.

...For example, the most distant human-made object is Voyager I, which has a transmission power of about 23 Watts, and is still detectable by radio telescopes 125 AU away. Proxima Centauri, the closest star to the Sun, is about 2,200 times more distant. Since the strength of a light signal decreases with distance following the inverse square relation, one would need a transmission power of more than 110 million Watts to transmit a signal to Proxima Centauri with the strength of Voyager to Earth. Current TV broadcasts (at least in the States) is limited to around 5 million Watts for UHF stations, and many stations aren’t nearly that powerful...

https://briankoberlein.com/2015/02/19/e-t-phone-home/

[MG Man]

yeah this is likely a naturally occurring phenomenon

[jahs0ldi3r]

Very cool stuff.

Bad movie

[jahs0ldi3r]

radio waves travel through space at the speed of light, and those are being detected from 1.5 billion light years away. Whatever made those radio waves is long gone or very different from what it was 1.5 billion years ago

A light year is a measure of distance not time btw

Lol so like how long did those waves take to reach earth then?

My question is how could they tell how far away the waves came from or how far it traveled?

It's like judging distance with one eye.

[jahs0ldi3r]

radio waves travel through space at the speed of light, and those are being detected from 1.5 billion light years away. Whatever made those radio waves is long gone or very different from what it was 1.5 billion years ago

A light year is a measure of distance not time btw

Ummm speed is DISTANCE over TIME. A lightyear is a unit of astronomical distance equivalent to the distance that light travels in one year.

If it originated 1.5 billion light years away and travelled here at the speed of light, how long would it have taken to get here?

assuming the signal source to be static in the vacuum at it's initiation and that it traveled consistently at the speed of light directly from it's point of origin & straight to this big blue marble & that it there were no events or objects that would potentially slow it's travel, it'd take 1.5b years
however,
Their causes as well as their point of origin is unknown, so this introduces a few potential variables into the equation that could have either lengthened or shortened the time those waves took to arrive at this location from their initial outset. Currently, it's a lot of theoretical estimation as regards how long they took to arrive here and their point of origin, & that's why I pointed out that a ly is a measure of distance, not time. In essence, that covers the distance/time it took to get from there to here, but we do not know for certain that the signals actually started there & not further away or nearer.
All I'm essentially saying is until the signals source/s are identified, all the conjecture of how long they took to arrive here from their source is just that, conjecture, & that the use of parameters such as time can only be applied so far.

My point exactly. ^^

[jahs0ldi3r]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

Unknown source, unknown location but we can determine how far it is?

Tell me about it...

[jahs0ldi3r]

If we are looking at an object ~1.5 billion light years away, the image we are seeing is ~1.5 billion years old, not so?

My point is if science shows the waves came from 1.5B light years away, then it's a very old signal.

true, as we humans would perceive it that image would appear to be at least 1.5b yrs old

Unknown source, unknown location but we can determine how far it is?

The article stated 1.5B light years away, not sure how they calculated that

If there are multiple telescopes, I guess they can approximate the diameter of the progression and extrapolate the point source.

Not even, if the signal is so far away, it would reach every single point on earth on the side that's facing it(basically parallel), at probably the exact same intensity, less the differences caused by the distance through the atmosphere that it travels (attenuation) based on the angle between the surface of the ball shaped earth's perpendicular at reception point and the signal origin 'point'.

I rusty, but hope y'all understand what I mean


It's not as if they're triangulating a cell signal

[maj. tom]

Measuring the distance of radio sources:

If the observation is a constant source, they can use parallax of the positions of the earth (relative to the sun) over a year to determine the distance by precise triangulation. http://astronomy.swin.edu.au/cosmos/T/T ... c+Parallax

The other method is Dispersion Measure and much more complicated.
http://astronomy.swin.edu.au/cosmos/P/P ... on+Measure

And both methods together yields even more accurate results, which is what is done to confirm the calculations.

[crazybalhead]

radio waves travel through space at the speed of light, and those are being detected from 1.5 billion light years away. Whatever made those radio waves is long gone or very different from what it was 1.5 billion years ago

A light year is a measure of distance not time btw

Ummm speed is DISTANCE over TIME. A lightyear is a unit of astronomical distance equivalent to the distance that light travels in one year.

If it originated 1.5 billion light years away and travelled here at the speed of light, how long would it have taken to get here?