Scientists find no sign of aliens in study of 10 million star systems
Australian astronomers say they've found no technological signs of alien life in a study of more than 10 million star systems.
Perth-based researchers used the Murchison Widefield Array (MWA) radio telescope in the Western Australian outback, in a project dubbed 'looking for ET'.
The MWA searches for powerful radio emissions at low frequencies, similar to FM radio frequencies on Earth that allow radio broadcasts.
These emissions from space, known as 'technosignatures', could possibly indicate the presence of an intelligent aliens with technological innovations similar to our own.
The team completed the 'deepest and broadest search' of a patch of sky known to include at least 10 million stars, in the southern constellation of Vela.
But the researchers concluded that, in this part of the universe, other civilisations are 'elusive, if they exist' at all.
aliens
qazplm135
(7,447 posts)Radio for space communication?
Buckeye_Democrat
(14,853 posts)And maybe they're more like Stephen Hawking and wary about advertising themselves?
Buckeye_Democrat
(14,853 posts)... and our Milky Way is just one galaxy among hundreds of billions of other galaxies out there.
PoliticAverse
(26,366 posts)JustFiveMoreMinutes
(2,133 posts)which must match ours from the first/last light years away.......
lagomorph777
(30,613 posts)Bayard
(22,069 posts)Do you think aliens go screaming through the universe, just to get McNuggets?
If the search parameters only include what humans can understand, we're not likely to find anything.
Eko
(7,289 posts)And the immense time of it. The age of the universe is 13.7 billion years. Out of that 13.7 billion years how long have we been able to even see our solar system with enough tech to be able to know that we are the only life in it? 70 years? How much longer do you expect for us to be around? Lets say another thousand years. What is that like .07% of the time the universe has been here?
Doodley
(9,089 posts)Eko
(7,289 posts)He held out his hand and would make a opening and closing gesture with a psst noise quickly to show how civilizations would have risen to the level that they could see even part of their solar system and then died compared to the time of the universe. Wish I could find it.
Layzeebeaver
(1,623 posts)It computes to 0.00000007810219th of the life of the universe.
Dividing by 100 to format as a percentage just makes me remember that Ive forgotten way too much math during my portion of the universes life.
Regardless, your point is very valid!
Eko
(7,289 posts)I think it is 0.00000781021897810219%. I went to here https://captaincalculator.com/math/percent/percentage-calculator/. Feel free to correct me if Im wrong. Thanks for backing me up!!
Eko.
StevieM
(10,500 posts)for more than another 1000 years.
If climate change does not finish us off then I think we will find ways of preserving ourselves, and growing our opportunities here on Earth, and eventually throughout the cosmos.
But that is a big if. Once we hit 3 degrees Celsius of warming some pretty serious feedback loops will kick in that will be hard to control. We will need a very advanced, and presumably expensive, program of geoengineering.
We need to start transforming our energy economy right away. And we need to get to work on developing geoengineering strategies. If we don't then the human race could be extinct in 200 years, along with a whole lot of other species.
hatrack
(59,585 posts)For a Preview Of Coming Attractions just check the West Coast today:
Link to tweet
Link to tweet
Link to tweet
Link to tweet
This is at an increase of 1C and a bit.