Was Our Solar System “Probed” Last Year?

Message boards : SETI Perspectives : Was Our Solar System “Probed” Last Year?
Message board moderation

To post messages, you must log in.

Previous · 1 · 2

AuthorMessage
Frank Meade Special Project $250 donor

Send message
Joined: 15 May 99
Posts: 5
Credit: 538,063,958
RAC: 581,618
United States
Message 1983232 - Posted: 3 Mar 2019, 20:58:35 UTC - in response to Message 1983231.  

I guess if Eric can stumble grammatically so can I.
ID: 1983232 · Report as offensive
Profile DuncanM

Send message
Joined: 8 Apr 14
Posts: 1
Credit: 57,699
RAC: 42
Australia
Message 1983277 - Posted: 3 Mar 2019, 23:37:31 UTC - in response to Message 1981929.  

Thanks for the post Dr. Lawn and welcome. Very interesting indeed. My own view is that unless we have something that reflects unequivocally intelligence in some way or another then we are dealing with some form of yet uncategorized natural phenomenon. If this object had stopped mid-trajectory, abruptly changed direction or reversed its trajectory then that is definitely reflective of some propulsive capacity. Likewise if we had picked up, for example, radio signatures suggesting radar mapping of our solar system then again I call that unequivocal evidence of intelligence. As things stand we can only speculate, however I personally do not consider it to be evidence of alien technology or activity. Best wishes to all fellow SETI members.
ID: 1983277 · Report as offensive
Profile Gone with the wind Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester

Send message
Joined: 19 Nov 00
Posts: 41592
Credit: 42,007,548
RAC: 191
Message 1983540 - Posted: 5 Mar 2019, 8:44:36 UTC

Welcome to the Seti forums Dr Lawn, and I would like to associate myself with the comments of our project Director Eric Korpela, that we hope that you will produce more stimulating discussions in the future. However, I do feel that your first submission was perhaps a little unwise in it's subject matter of Oumuamua.

As you will be aware, your colleague and fellow astronomer from Harvard, Dr Loeb has unfortunately attracted some unwelcome attention by his published opinions about this object. And in the process has not done the University or himself any favours, particularly when we know that he is also the Advisory Committee Chairman of the Breakthrough Listen Starshot project which aims to produce proof of concept light sails. One could be forgiven for thinking that he was a bit biased to say the least.

We can say unequivocally that this object most certainly came from outside the Solar System, there is no dissension or doubt about that. What is a continuing cause for discussion is regarding what the object actually was. It could have been an odd shaped lump of space rock, or it could have been a controlled alien probe, or even a lightsail. What we have to recognise is that there is no concrete proof one way or another, anyone can come up their own opinion, safe in the knowledge that they can't be proved right or wrong.

So the authors came right out and suggested the possibility of an artificial origin for Oumuamua. Outlandish? We are reminded of the sage advice of Sherlock Holmes: “When you have excluded the impossible, whatever remains, however improbable, must be the truth.”

Sherlock Holmes was a fictional character written by Sir Arthur Conan Doyle, Oumuamua was a real object that came and went.

What you have to do is to say OK, in the face of no universally acceptable evidence, how LIKELY was it that that it was an ET probe. Would an ET race come stomping into our star system with size 10 boots? The odds are no they wouldn't. They would likely park the main ship in orbit round an outer planet and send smaller probes to the inner planets to see what there was. The feeling that I am getting from people is that they think it could have been a possible ET probe, but it was more unlikely than not.

Is there value beyond stirring the press and the public imagination in placing in the scientific literature the provocative possibility of an artificial origin of Oumuamua?

I would say yes there is. Many people still think of UFO hunters as weirdos with tin foil hats, looking for little green men. Respectable scientists and projects are now spending Billions of dollars on seriously looking for evidence of ET. It would do no harm at all to open the public's minds to accept the possibility that ET really could exist, and that it is being taken seriously. The day that an announcement of contact is made, will see less rioting in the streets if the lead-up to it is handled sensibly. So far it has been a ham fisted shambles attracting much derision.
ID: 1983540 · Report as offensive
Robert Van Put

Send message
Joined: 18 May 99
Posts: 2
Credit: 366,081
RAC: 295
Belgium
Message 1983547 - Posted: 5 Mar 2019, 10:15:01 UTC - in response to Message 1981929.  

Thank you for the article and welcome.
ID: 1983547 · Report as offensive
Paul

Send message
Joined: 15 Sep 17
Posts: 4
Credit: 2,550,941
RAC: 451
United States
Message 1983900 - Posted: 7 Mar 2019, 18:20:17 UTC - in response to Message 1981929.  

Thanks for a great summary on Oumuamua. I hadn't been aware that it seems to be accelerating as it leaves the system.
ID: 1983900 · Report as offensive
Profile Carl Kruse Project Donor
Avatar

Send message
Joined: 31 May 99
Posts: 6
Credit: 903,521
RAC: 394
United States
Message 1984006 - Posted: 8 Mar 2019, 0:33:37 UTC - in response to Message 1982058.  
Last modified: 8 Mar 2019, 0:37:01 UTC

The last line of the article hit home for me.

If we never look, the probability of finding ET is zero.

Unless of course they find us first, though any one want to put odds on that?
ID: 1984006 · Report as offensive
Profile Mikenstein

Send message
Joined: 6 Sep 15
Posts: 8
Credit: 10,514,076
RAC: 17,076
United States
Message 1984183 - Posted: 8 Mar 2019, 19:24:30 UTC - in response to Message 1981929.  

I found your post fascinating. I hope my comments do not paint me as some kind of Sci-Fi junkie, my degree is in IT so my knowledge of astronomy and astrophysics could fit in a thimble. But one part of your post referred to the "Visitor" having an orbit that took it around the Sun. As a fan of Science Fiction I could not help but remember the often used literary device of "Sling Shooting" around the sun to achieve speeds capable of achieving Time Travel. While the Visitor is not quite at that velocity, it makes me wonder what might happen if some one actually did it on purpose? The Visitor is accelerating, perhaps this is the boost that is causing the phenomenon? I'll need to sit down and read everything further, because it peaks my inquisitive mind.
ID: 1984183 · Report as offensive
Profile Bertram
Avatar

Send message
Joined: 15 Aug 11
Posts: 1
Credit: 4,382,688
RAC: 66
United States
Message 1984208 - Posted: 8 Mar 2019, 22:24:51 UTC - in response to Message 1981929.  

Yes I remember the press about the I A. Course changes seemed weird by some but wow! Welcome and Thank You.
http://allprojectstats.com/ts122724x15a.png
ID: 1984208 · Report as offensive
Evans SAH

Send message
Joined: 20 Sep 99
Posts: 1
Credit: 1,351,923
RAC: 875
South Africa
Message 1984263 - Posted: 9 Mar 2019, 10:29:48 UTC

See the recent article in Quanta: https://www.quantamagazine.org/galaxy-simulations-offer-a-new-solution-to-the-fermi-paradox-20190307

Seth Shostak's comment at the end is pertinent. When we discover SETI, will we even recognize it?

For a philosopher, all human inquiry degenerates into epistemology.
ID: 1984263 · Report as offensive
Profile Gone with the wind Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester

Send message
Joined: 19 Nov 00
Posts: 41592
Credit: 42,007,548
RAC: 191
Message 1984275 - Posted: 9 Mar 2019, 13:05:37 UTC

Don't forget metaphysics.
ID: 1984275 · Report as offensive
BlackCat

Send message
Joined: 5 Sep 18
Posts: 1
Credit: 476,913
RAC: 573
Message 1984546 - Posted: 11 Mar 2019, 13:48:48 UTC - in response to Message 1982022.  
Last modified: 11 Mar 2019, 13:50:44 UTC

additude, You made a good point, ALMOST ran into our star. Great observation! Was this a form of a gravity slingshot procedure, or navigation correction? I know to answer would take a level of understanding the path of the sun, and the object, that I'm not trained in to answer. We have a forum that has the skills to conjecture this problem. Any thoughts on this by anyone?
ID: 1984546 · Report as offensive
Profile robotic
Avatar

Send message
Joined: 6 Jun 99
Posts: 8
Credit: 1,396,036
RAC: 4
United Kingdom
Message 1984549 - Posted: 11 Mar 2019, 14:31:29 UTC - in response to Message 1982484.  
Last modified: 11 Mar 2019, 14:42:24 UTC

If something accelerates there must be a force acting on it, otherwise it would maintain the same speed.
Tullio

The original article by Dr Lawn is certainly most interesting, and as I read through the following comments I came across this one which I believe refers to the apparent acceleration of the visitor. Oumuamua.
One would think that there would need to be a force acting on it to achieve this, but could it not be the force originating from the Big Bang, which I believe is the same force that is causing the universe to continually expand, and at an accelerating rate? ... and was mentioned I think by another contributor?
Robert Chalmers
https://robert-chalmers.uk
@R_A_Chalmers
ID: 1984549 · Report as offensive
Profile Mikenstein

Send message
Joined: 6 Sep 15
Posts: 8
Credit: 10,514,076
RAC: 17,076
United States
Message 1984758 - Posted: 12 Mar 2019, 14:13:25 UTC

Here's some Information I found is Interesting: https://news.yale.edu/2019/03/12/new-theory-oumuamua-its-comet-rocks
ID: 1984758 · Report as offensive
Profile Gone with the wind Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester

Send message
Joined: 19 Nov 00
Posts: 41592
Credit: 42,007,548
RAC: 191
Message 1984767 - Posted: 12 Mar 2019, 14:32:34 UTC

Astronomers at Yale and Caltech say that ‘Oumuamua, the much-discussed interstellar space rock, is best viewed as a comet with odd properties — and not an alien probe, as has been suggested.

Harvard astronomers lose again!

Latest "new" theory/idea/possibility/conjecture etc
ID: 1984767 · Report as offensive
Profile Tom M
Volunteer tester

Send message
Joined: 28 Nov 02
Posts: 3699
Credit: 221,394,288
RAC: 390,903
United States
Message 1985010 - Posted: 13 Mar 2019, 23:39:55 UTC - in response to Message 1982458.  

It was just a rock from interstellar space. I'm quite sure this happens often.


That seems most likely. The problem is we haven't seen many of them. So when you have one rock from interstellar space in the lifetime of our current technological civilization, it seems to be "rare".

Tom
A proud member of the OFA (Old Farts Association)
"Over the hill? WHAT Hill? I don't REMEMBER any hill...." (from a bumper sticker I bought at a truck stop).
"If its Tourist Season why can't we shoot them?" (another bumper sticker)
ID: 1985010 · Report as offensive
Profile Gone with the wind Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester

Send message
Joined: 19 Nov 00
Posts: 41592
Credit: 42,007,548
RAC: 191
Message 1985754 - Posted: 18 Mar 2019, 12:20:41 UTC

+1 Tom
ID: 1985754 · Report as offensive
Profile Kimuta1

Send message
Joined: 14 Feb 10
Posts: 3
Credit: 3,379,503
RAC: 1,768
Kenya
Message 1985792 - Posted: 18 Mar 2019, 15:07:46 UTC - in response to Message 1981929.  

Seems to me that the best way to explore the universe is to send probes that flit from galaxy to galaxy.
You need to speed up in interstellar space, slow down and scan each galaxy as they whip through and slingshot out to the next destination.
Report back after each encounter. Allowing home base to explore only the interesting data. Plus you can send out huge numbers of probes.
ID: 1985792 · Report as offensive
Profile Gone with the wind Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester

Send message
Joined: 19 Nov 00
Posts: 41592
Credit: 42,007,548
RAC: 191
Message 1985810 - Posted: 18 Mar 2019, 16:20:42 UTC

Er um .....

is to send probes that flit from galaxy to galaxy.

Nearest galaxy to us is 42,000 LY away. Can NASA devise a probe to do what you suggest?

Nice idea though.
ID: 1985810 · Report as offensive
Profile Lynn Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 13591
Credit: 68,466,981
RAC: 98,968
United States
Message 1986311 - Posted: 21 Mar 2019, 8:33:30 UTC - in response to Message 1985810.  

video from spaces-deepest-secrets.
aired a couple of nights ago.

Enjoy!
https://www.space.com/spaces-deepest-secrets-oumuamua-video.html
'Space's Deepest Secrets' Probes Mystery of 'Oumuamua Tonight (Video)


The Science Channel series "Space's Deepest Secrets" returns tonight (March 19) at 10 p.m. EDT with a look at a mysterious interstellar visitor.

In 2017, scientists spotted a gigantic rocky object, about the size and shape of a skyscraper, hurtling through our solar system. And they soon discovered that this terrific space rock didn't originate within the eight-planet system we call home. Instead, it comes from another solar system. The scientists, who saw the rock through the University of Hawaii's Pan-STARRS1 telescope, called it 'Oumuamua, which means "a messenger from afar arriving first."
ET Phone Home
ID: 1986311 · Report as offensive
Previous · 1 · 2

Message boards : SETI Perspectives : Was Our Solar System “Probed” Last Year?


 
©2019 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.