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Old 30th November 2017, 07:39 PM   #41
John Jones
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Originally Posted by Roboramma View Post
I guess that depends on how much warning we had. As I understand it Oumuamua was only discovered on it's way out of the solar system. [...]
Look what you wrote.
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Old 14th December 2017, 02:52 AM   #42
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"Where are we now?"
"Just heading past Earth, sir."
"Already? Oh ****** Turn off engines, turn off everything!"
"...Ok."
*Ship powers down*
"Sir, we're being hailed by the humans."
"Don't reply."
"They seem to want to make contact-"
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Old 14th December 2017, 05:22 AM   #43
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Lobsang Rampa?
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Old 14th December 2017, 06:09 AM   #44
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Think they'll find anything?

http://www.bbc.co.uk/news/science-environment-42329244
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Old 14th December 2017, 07:23 AM   #45
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Nope. Wishful thinking.
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Old 14th December 2017, 07:40 AM   #46
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So no naked Mathilda May Space Vampire?
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Old 14th December 2017, 07:57 AM   #47
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Originally Posted by alexi_drago View Post

Quote:
"Its properties suggested it originated around another star, making it the first such body to be spotted in our cosmic neighbourhood."
"Its properties" my jewels! It is its velocity: at 1 AU it was like 49 km/s when at such distance the escape velocity for the solar system is like 42 km/s, so the trajectory must be hyperbolic. As it velocity has to have been very high when it was far from the Sun -some 25 km/s when it was at 100 AU, some 18 km/s at 1000 AU (I'm making the calculations in the air)- it is almost impossible that this object originated in the Solar system and acquired such speed just by means of "cosmic billiards".
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Old 14th December 2017, 08:36 AM   #48
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A £75 million programme that searches for evidence of intelligent life beyond Earth called Breakthrough Listen, led by Stephen Hawking, is attempting to detect evidence of alien technology transmitting from the object.
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Old 14th December 2017, 08:43 AM   #49
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Originally Posted by aleCcowaN View Post
"Its properties" my jewels! It is its velocity: at 1 AU it was like 49 km/s when at such distance the escape velocity for the solar system is like 42 km/s, so the trajectory must be hyperbolic. As it velocity has to have been very high when it was far from the Sun -some 25 km/s when it was at 100 AU, some 18 km/s at 1000 AU (I'm making the calculations in the air)- it is almost impossible that this object originated in the Solar system and acquired such speed just by means of "cosmic billiards".
Even having slowed since rounding the Sun, Omuamua's velocity is greater than that of Voyager 1 and certainly high enough to leave the Solar System (no matter where the fence is).
https://upload.wikimedia.org/wikiped...perihelion.png
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Old 14th December 2017, 08:45 AM   #50
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Originally Posted by Scorpion View Post
A £75 million programme that searches for evidence of intelligent life beyond Earth called Breakthrough Listen, led by Stephen Hawking, is attempting to detect evidence of alien technology transmitting from the object.

a) We know, that's what the last few posts have been about

b) Breakthrough Listen is not led by Stephen Hawking, his only involvement with it has been to sign a letter supporting it.
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Old 14th December 2017, 09:16 AM   #51
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Originally Posted by aleCcowaN View Post
"Its properties" my jewels! It is its velocity: at 1 AU it was like 49 km/s when at such distance the escape velocity for the solar system is like 42 km/s, so the trajectory must be hyperbolic. As it velocity has to have been very high when it was far from the Sun -some 25 km/s when it was at 100 AU, some 18 km/s at 1000 AU (I'm making the calculations in the air)- it is almost impossible that this object originated in the Solar system and acquired such speed just by means of "cosmic billiards".

A physicist considers position and momentum as properties. Weak water, but a science reporter may not even grasp it when spoken.

BTW the Wikipedia page suggests is it impossible to be from within the solar system (barring rocket boost by the Crab People) as any unknown planets that may have aided in accelerating it would have to be so far out that their slow speed could not accomplish this.
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Last edited by Beerina; 14th December 2017 at 09:22 AM.
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Old 14th December 2017, 09:31 AM   #52
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Originally Posted by Scorpion View Post
A £75 million programme that searches for evidence of intelligent life beyond Earth called Breakthrough Listen, led by Stephen Hawking, is attempting to detect evidence of alien technology transmitting from the object.
I'll start becoming excited if it displays non-ballistic changes in course.

It is intriguing to think about how we would react if this was to actually happen. Panic? Excitement? Fear? Anticipation? Given the current state of the planet I'm not certain that even it were filled with extraterrestrials coming to Earth to eat us I would view it as the worse thing possible.
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Old 14th December 2017, 09:40 AM   #53
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Originally Posted by Giordano View Post
I'll start becoming excited if it displays non-ballistic changes in course.

It is intriguing to think about how we would react if this was to actually happen. Panic? Excitement? Fear? Anticipation? Given the current state of the planet I'm not certain that even it were filled with extraterrestrials coming to Earth to eat us I would view it as the worse thing possible.
Twitterstorm.
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Old 14th December 2017, 10:25 AM   #54
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Originally Posted by Beerina View Post
A physicist considers position and momentum as properties.
My mistake. A matter of false cognates (a.k.a false friends) in English and Spanish. Hard to me accepting velocity is a property. Is degrees of freedom considered also a property in English?
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Old Today, 08:12 AM   #55
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Originally Posted by aleCcowaN View Post
My mistake. A matter of false cognates (a.k.a false friends) in English and Spanish. Hard to me accepting velocity is a property. Is degrees of freedom considered also a property in English?
More specifically an independent property of the object or system can be considered a degree of freedom for that object or system in physics and chemistry.


https://en.wikipedia.org/wiki/Degree...and_chemistry)
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