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Interstellar Object Being Probed for Life

Evilroddy said:
Blarg:

1) Being located in interstellar space does not necessarily mean that an object has fully escaped a star's or star-system's gravitational pull.

2) Objects can encounter gravitational fields from masses other than stars in interstellar space which can alter their course and send them back to a solar system from which they emerged.

3) if our solar system is not a uni-stellar system and if a very dim companion star (say a black or brown dwarf which we are unaware of) is out there this cigar-shaped object could have originated from that region but still be a part of our shared binary solar system.

4) The object could also be truely interstellar in origin, we just don't know enough about it and its history at this point so the jury is still out.

Cheers.
Evilroddy.
Click to expand...
https://www.nasa.gov/planetarydefense/faq/interstellar
 
blarg said:
https://www.nasa.gov/planetarydefense/faq/interstellar
Click to expand...

Blarg:

From your source:

Where did it come from?

1I/2017 U1’s trajectory indicates it came from the general direction of the constellation Lyra. At the speed it was going, it must have taken at least a few hundred thousand years since it was near even the nearest star in that direction, and it may well have been traveling much longer than that. Scientists don’t know the motions of the stars well enough to say where they were located that long ago. We simply don’t know which star system this object came from.
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That its trajectory comes from interstellar space (beyond the heliosphere of our sun) is not contested, but that does not mean its origin is either interstellar or from another star. There is just not enough evidence to say for sure. I will grant you a persuasive case has been made but there is also room for scepticism with respect to origin.

We can celebrate this discovery without forgetting that science deals in evidence and falsification by which standing theories are routinely and often overturned. Certitude is the end of science and the beginning of dogma.

Cheers.
Evilroddy.
 
calamity said:
I think he's saying that its orbit may be such that it travels further away from the sun than what we would normally expect. I haven't read enough about this thing to know if the math works out though. My understanding is that it is not trapped in orbit around the sun. But, I don't know that.
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This object came from and is headed to another star; could not have fallen from our own Oort cloud.

Some stars and star systems are moving this fast relative to the sun.

Between stars she is only traveling the speed of Earth's orbit.

Oumuamua could have gathered her momentum in any of many ways.

Here, I'll post the Wikipedia page again for you: https://en.wikipedia.org/wiki/ʻOumuamua
 
Exquisitor said:
This object came from and is headed to another star; could not have fallen from our own Oort cloud.

Some stars and star systems are moving this fast relative to the sun.

Between stars she is only traveling the speed of Earth's orbit.

Oumuamua could have gathered her momentum in any of many ways.

Here, I'll post the Wikipedia page again for you: https://en.wikipedia.org/wiki/ʻOumuamua
Click to expand...

Thanks. I'll actually read it this time.
 
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