Interstellar visitor has NASA scientists debating and seriously questioning, very strange cigar shaped rock from another alien solar system. by JAYNEZTOWN

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Interstellar visitor has NASA scientists debating and seriously questioning, very strange cigar shaped rock from another alien solar system.

POSTED BY: JAYNEZTOWN
UPDATED: Thursday, March 18, 2021 10:55
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Sunday, November 26, 2017 4:54 AM

JAYNEZTOWN

...but its just a 'rock' right?
https://www.nasa.gov/feature/solar-system-s-first-interstellar-visitor
-dazzles-scientists
?
A LOST ‘alien’ asteroid shaped like a cigar has invaded our solar system for the first time after wandering between stars for hundreds of millions of years.
http://www.news.com.au/technology/science/

Karen Meech, of the Institute of Astronomy in Hawaii, explained it some more in a NASA press release:
https://www.outerplaces.com/science/item/17129-interstellar-asteroid-o
umuamua-cigar
Opening quote
"This unusually large variation in brightness means that the object is highly elongated: about 10 times as long as it is wide, with a complex, convoluted shape. We also found that it has a dark red color, similar to objects in the outer solar system, and confirmed that it is completely inert, without the faintest hint of dust around it."

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Sunday, November 26, 2017 7:16 AM

SECOND

The Joss Whedon script for Serenity, where Wash lives, is Serenity-190pages.pdf at https://www.mediafire.com/folder/1uwh75oa407q8/Firefly

Interstellar Asteroid
https://xkcd.com/1919/

Every time we detect an asteroid from outside the Solar System, we should immediately launch a mission to fling one of our asteroids back in the direction it came from.

The Joss Whedon script for Serenity, where Wash lives, is Serenity-190pages.pdf at www.mediafire.com/folder/1uwh75oa407q8/Firefly

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Monday, November 27, 2017 7:42 AM

6IXSTRINGJACK

It's space debris from a race of giants from another solar system. Their version of Lorainna Bobbit cut of John Wayne's wing-wang and she threw it out the window on the intergalactic highway.

Now we gotta look at it.

Do Right, Be Right. :)

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Thursday, September 12, 2019 9:28 PM

JAYNEZTOWN

Another one?
https://www.businessinsider.com/interstellar-object-possibly-approachi
ng-our-solar-system-2019-9
A 2nd mysterious object from interstellar space may be about to fly through our solar system

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Thursday, March 18, 2021 10:55 AM

JAYNEZTOWN

'Oumuamua'

In 2017, the first interstellar object from beyond our solar system was discovered via the Pan-STARRS astronomical observatory in Hawaii. It was named 'Oumuamua, meaning "scout" or "messenger" in Hawaiian. The object was like a comet, but with features that were just odd enough to defy classification.

Two Arizona State University astrophysicists, Steven Desch and Alan Jackson of the School of Earth and Space Exploration, set out to explain the odd features of 'Oumuamua and have determined that it is likely a piece of a Pluto-like planet from another solar system. Their findings have been recently published in a pair of papers (part I and part II) in the AGU Journal of Geophysical Research: Planets. "In many ways 'Oumuamua resembled a comet, but it was peculiar enough in several ways that mystery surrounded its nature, and speculation ran rampant about what it was," said Desch, who is a professor in the School of Earth and Space Exploration.

From observations of the object, Desch and Jackson determined several characteristics of the object that differed from what would be expected from a comet.

In terms of speed, the object entered the solar system at a velocity a bit lower than would be expected, indicating that it had not been traveling in interstellar space for more than a billion years or so. In terms of size, its pancake shape was also more flattened than any other known solar system object.
https://www.spacedaily.com/reports/ASU_scientists_determine_origin_of_
strange_interstellar_object_999.html
They also observed that while the object acquired a slight push away from the sun (a "rocket effect" common in comets as sunlight vaporizes the ices they are made of), the push was stronger than could be accounted for. Finally, the object lacked a detectable escaping gas, which is usually depicted visibly by a comet's tail. In all, the object was very much like a comet, but unlike any comet that had ever been observed in the solar system.

Desch and Jackson then hypothesized that the object was made of different ices and they calculated how quickly these ices would sublimate (passing from a solid to a gas) as 'Oumuamua passed by the sun. From there, they calculated the rocket effect, the object's mass and shape, and the reflectivity of the ices.

"That was an exciting moment for us," Desch said. "We realized that a chunk of ice would be much more reflective than people were assuming, which meant it could be smaller. The same rocket effect would then give 'Oumuamua a bigger push, bigger than comets usually experience."

Desch and Jackson found one ice in particular - solid nitrogen - that provided an exact match to all the object's features simultaneously. And since solid nitrogen ice can be seen on the surface of Pluto, it is possible that a cometlike object could be made of the same material.

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