Article <vg0421$2ni3p$1@dont-email.me>

Warning: mysqli::__construct(): (HY000/1203): User howardkn already has more than 'max_user_connections' active connections in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\includes\artfuncs.php on line 21
Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connections
Warning: mysqli::query(): Couldn't fetch mysqli in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\index.php on line 66
Article <vg0421$2ni3p$1@dont-email.me>

Deutsch English Français Italiano

<vg0421$2ni3p$1@dont-email.me>

View for Bookmarking (what is this?)
Look up another Usenet article

Path: news.eternal-september.org!eternal-september.org!news.eternal-september.org!feeder2.eternal-september.org!2.eu.feeder.erje.net!feeder.erje.net!feeds.news.ox.ac.uk!news.ox.ac.uk!nntp-feed.chiark.greenend.org.uk!ewrotcd!news.eyrie.org!beagle.ediacara.org!.POSTED.beagle.ediacara.org!not-for-mail
From: RonO <rokimoto557@gmail.com>
Newsgroups: talk.origins
Subject: Re: Scientists found one of the largest carbon-based space molecules
 ever.
Date: Thu, 31 Oct 2024 09:26:09 -0500
Organization: A noiseless patient Spider
Lines: 68
Sender: to%beagle.ediacara.org
Approved: moderator@beagle.ediacara.org
Message-ID: <vg0421$2ni3p$1@dont-email.me>
References: <vfuup6$2hsaf$1@dont-email.me>
Reply-To: rokimoto557@gmail.com
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Info: beagle.ediacara.org; posting-host="beagle.ediacara.org:3.132.105.89";
	logging-data="87045"; mail-complaints-to="usenet@beagle.ediacara.org"
User-Agent: Mozilla Thunderbird
To: talk-origins@moderators.isc.org
Cancel-Lock: sha1:h8zoztSaz3bVxJpH20ABMDucEqM=
Content-Language: en-US
In-Reply-To: <vfuup6$2hsaf$1@dont-email.me>
	FREEMAIL_FORGED_REPLYTO,FREEMAIL_REPLYTO_END_DIGIT,
	HEADER_FROM_DIFFERENT_DOMAINS,NML_ADSP_CUSTOM_MED,
	RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,
	USER_IN_WELCOMELIST,USER_IN_WHITELIST autolearn=no autolearn_force=no
	version=3.4.6
	smtp.eternal-september.org

On 10/30/2024 10:49 PM, Pro Plyd wrote:
> 
> 
> https://www.livescience.com/space/astronomy/scientists-found-one-of-the- 
> largest-carbon-based-space-molecules-ever-heres-why-thats-a-big-deal
> 
> Astronomers have discovered one of the largest
> carbon-based molecules found in deep space,
> located within the Taurus molecular cloud, 430
> light-years from Earth. The finding is
> significant because it provides further clues
> that might help solve a longstanding mystery
> in astrochemistry: Where does carbon, the
> building block of life, come from?

A couple of years ago a paper made the proposal that most of the carbon 
in the universe had to have been created in stars around the size of 
ours or larger, but not large enough to go Nova.  The carbon would have 
been expelled from these stars when they entered their red giant phase 
at the end of their active stellar lives.  So carbon would have 
accumulated more slowly in the universe because it would take longer for 
these stars to age into red giants.  Stars the size of ours would not 
have expelled their carbon until they were 10 billion years old, but 
stars larger than ours would cycle faster.

Elements heavier than iron are supposed to be created in super nova or 
stellar collisions.

Ron Okimoto

> 
> The molecule, called pyrene, is made up of four
> fused planar rings of carbon.
> 
> "This is now the seventh individual PAH
> identified in space since we first found one
> in 2021," said Ilsa Cooke, assistant professor
> in the UBC department of chemistry. "[PAHs]
> have similar chemical structures to the
> building blocks of life. By learning more
> about how these molecules form and are
> transported in space, we learn more about our
> own solar system and so, the life within it."
> 
> The astronomers estimated that pyrene
> accounted for about 0.1% of the carbon found
> in the cloud. "That is an absolutely massive
> abundance. An almost unbelievable sink of
> carbon. It’s an interstellar island of
> stability," said McGuire.
> 
> What was even more intriguing to the team,
> aside from finding pyrene in the origin
> place of our solar system, is the fact that
> the temperatures of the cloud were measured
> to be only 10 Kelvin (-263 degrees Celsius).
> On Earth, PAHs are formed during high
> temperature processes, namely through the
> combustion of fossil fuels. Finding them in
> this cold environment was therefore
> surprising. "Future work aims to explore
> whether PAHs can form somewhere that’s
> extremely cold, or whether they arrive from
> elsewhere in the universe, potentially via
> the death throes of an old star," said
> Cooke.
>