re: Can we discuss Oumuamua? (Aliens)

quote:

---

bullshite, look closely and you will see both corn and peanuts. That's a big ol'Dookie

---

That would be great if it was some intergalactic being's turd and we are going nuts over it

I think it’s a rock. But I’m 100% behind it being studied more closely.

quote:

---

message in a bottle

---

Looks like a giant Flintstones thumb drive

quote:

---

1. It was basically just siting in interstellar space and our galaxy passed through it. This has never been observed before.

---

That is not what the article implied. My goodness.

quote:

---

2. Most objects in space are round due to effects of gravity. Not Oumuamua

---

For bodies made mainly of rock, the minimum size to become a self-gravitating sphere is about 600km diameter; but, for bodies mainly made of ice, the minimum size is about 400km diameter. Oumuamua is nowhere near big enough to be spherical.

quote:

---

3. We don’t know what it’s made of, but it’s very shiny

---

Oumuamua was not in the solar system long enough for its makeup to be analyzed. However, its reddish albedo hints at iron that was possibly exposed to oxygen at some point in its past.

quote:

---

4. When it passed close to our sun it changed trajectory in a manner that is not consistent with any natural process we know of

---

That's bold speculation. There are certainly natural explanations, including the one illustrated in the article, that the outgassing was pure water.

quote:

---

5. This movement may be consistent with an artificial solar sail. A interstellar “message in a bottle” maybe?

---

Again, speculation only. While the tumbling of Oumuamua indicates a possible pancake shape for the object, that's far from being a light sail that is pushed by solar winds.

The artist's rendition is not necessarily precise. We know that Oumuamua is much longer than it is wide but that's about it. Regrettably, there are no photos of the object.

We also know that it didn't originate in our solar system, does not emit any radiation of any kind and is silent, meaning there are no radio waves coming from it.

Its dark red color resembles that of objects in the outer solar system, giving credence to the notion that it was ejected from its native system at a high velocity, Even at its high rate of speed, 94,800 km/h, it will take 20,000 years for it to leave our solar system.

I’m not going to argue every point that you make, ill just say that your are contradicting a lot of scientists.

I’ll pick one argument for now. You say that it changed trajectory because of outgassing. This was already considered and found to be false...

quote:

---

Oumuamua could have originated by cometary outgassing if at least a tenth of its mass evaporated. But such massive evaporation would have naturally led to the appearance of a cometary tail, and none was seen. The Spitzer telescope observations also place tight limits on any carbon-based molecules or dust around ‘Oumuamua and rule out the possibility that normal cometary outgassing is at play (unless it is composed of pure water). Moreover, cometary outgassing would have changed the rotation period of ‘Oumuamua, and no such change was observed.

---

quote:

---

It changed direction because of the sun's gravity and increased its speed because of the slingshot effect of that gravity. The author of the article said

---

Go back and read the quote again. The wording is a little funky, but it’s not implying what you are saying

quote:

---

The trajectory of ‘Oumuamua deviated from that expected based on the sun’s gravity alone.

---

That means something OTHER THAN gravity caused the change.

They did admit it could be outgassing, but they did not see a comet tail which they would normally see with outgassing. So there has been no proof of outgassing.

quote:

---

We technically could get machinery to it next year large enough to perform scans, drill into it, take some samples, and send the data back.

---