Talk:ʻOumuamua: Difference between revisions

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== [[Interstellar object]] on [[Earth]]? ==

'''NOTE: Some of the following below is also copied in "[[Talk:Interstellar object#Interstellar object on Earth?]]" - for consideration/discussion - [[User:Drbogdan|Drbogdan]] ([[User talk:Drbogdan|talk]]) 12:47, 12 April 2022 (UTC)'''

FWIW - seems an [[interstellar object]] may currently be on [[Earth]] - recent news<ref name="VICE-202209407">{{cite news |last=Ferreira |first=Becky |title=Secret Government Info Confirms First Known Interstellar Object on Earth, Scientists Say - A small meteor that hit Earth in 2014 was from another star system, and may have left interstellar debris on the seafloor. |url=https://www.vice.com/en/article/dyp9ez/secret-government-info-confirms-first-known-interstellar-object-on-earth-scientists-say |date=7 April 2022 |work=[[Vice (magazine)|Vice News]] |accessdate=9 April 2022 }}</ref><ref name="INV-20220411">{{cite news |last=Wenz |first=John |title="It Opens A New Frontier Where You're Using The Earth As A Fishing Net For These Objects." - Harvard Astronomer Believes An Interstellar Meteor (or Craft) Hit Earth In 2014 |url=https://www.inverse.com/science/interstellar-meteor-2014-discovery |date=11 April 2022 |work=[[Inverse (website)|Inverse]] |accessdate=11 April 2022 }}</ref><ref name="ARX-20190604">{{cite arxiv |last1=Siraj |first1=Amir |last2=Loeb |first2=Abraham |title=Discovery of a Meteor of Interstellar Origin |date=4 June 2019 |arxiv=1904.07224 }}</ref><ref name="NASA-20220408">{{cite news |last1=Handal |first1=Josh |last2=Fox |first2=Karen |last3=Talbert |first3=Tricia |title=U.S. Space Force Releases Decades of Bolide Data to NASA for Planetary Defense Studies |url=https://www.nasa.gov/feature/us-space-force-releases-decades-of-bolide-data-to-nasa-for-planetary-defense-studies |date=8 April 2022 |work=[[NASA]] |accessdate=11 April 2022 }}</ref><ref name="NYT-20220415">{{cite news |last=Roulette |first=Joey |title=Military Memo Deepens Possible Interstellar Meteor Mystery - The U.S. Space Command seemed to confirm a claim that a meteor from outside the solar system had entered Earth’s atmosphere, but other scientists and NASA are still not convinced. (+ Comment) |url=https://www.nytimes.com/2022/04/15/science/interstellar-meteor-debate.html#permid=117852708 |date=15 April 2022 |work=[[The New York Times]] |accessdate=15 April 2022 }}</ref> may be of possible interest to some I would think - iac - Stay Safe and Healthy !! - [[User:Drbogdan|Drbogdan]] ([[User talk:Drbogdan|talk]]) 20:33, 9 April 2022 (UTC)

:Given this recent news, does the first sentence of this article,

:{{talk quote block|ʻOumuamua is the first known interstellar object detected passing through the Solar System.}}

:need to be changed, since Oumuamua was detected in 2017 and the referenced meteorite struck the Earth in 2014?

:[[User:Amolvaidya06|Amolvaidya06]] ([[User talk:Amolvaidya06|talk]]) 21:19, 11 April 2022 (UTC)

::I went ahead and made the [https://en.wikipedia.org/w/index.php?title=%CA%BBOumuamua&type=revision&diff=1082197244&oldid=1082186903 edit]. [[User:Amolvaidya06|Amolvaidya06]] ([[User talk:Amolvaidya06|talk]]) 21:28, 11 April 2022 (UTC)

'''BRIEF Followup''' - Updated the lede of the [['Oumuamua]] article as follows => '''*{{tq|{{okina}}Oumuamua is a known [[interstellar object]] detected passing through the [[Solar System]].(+ref) It is possibly the second interstellar object known; the first being a purported interstellar meteor that impacted Earth in 2014.(+refs)}}"''' - seems better - comments welcome of course - in any case - Stay Safe and Healthy !! - [[User:Drbogdan|Drbogdan]] ([[User talk:Drbogdan|talk]]) 22:35, 11 April 2022 (UTC)

'''FURTHER Updates''' (also for consideration/discussion) - originally in the "[[Interstellar object]]" article as follows:

* [[Interstellar object]] - LEDE

'''{{tq|The first interstellar object which was discovered traveling through our [[Solar System]] was [[ʻOumuamua|1I/ʻOumuamua]] in 2017. The second was [[2I/Borisov]] in 2019. They both possess significant [[Hyperbolic trajectory#Semi-major axis, energy and hyperbolic excess velocity|hyperbolic excess velocity]], indicating they did not originate in the Solar System. Earlier, in 2014, an interstellar object was purported to have impacted Earth, based on its estimated initial high velocity.<ref name="VICE-202209407" /><ref name="INV-20220411" /><ref name="ARX-20190604" /><ref name="NASA-20220408" />}}'''

*[[Interstellar object#January 8, 2014 meteor]]

'''{{tq|In 2019, a [[preprint]] was published suggesting that a 0.45 meter meteor of interstellar origin, did burn up in the Earth's atmosphere on January 8, 2014.<ref name="SA-20190423">{{cite news |last=Billings |first=Lee |title=Did a Meteor from Another Star Strike Earth in 2014? - Questionable data cloud the potential discovery of the first known interstellar fireball |url=https://www.scientificamerican.com/article/did-a-meteor-from-another-star-strike-earth-in-2014/ |date=23 April 2019 |work=[[Scientific American]] |accessdate=12 April 2022 }}</ref><ref name="SP-20190416">{{cite news |last=Choi |first=Charles Q. |title=The First Known Interstellar Meteor May Have Hit Earth in 2014 - The 3-foot-wide rock rock visited us three years before 'Oumuamua. |url=https://www.space.com/second-interstellar-object-a-meteor-discovery.html |date=16 April 2019 |work=[[Space.com]] |accessdate=12 April 2022 }}</ref><ref name="VICE-202209407">{{cite news |last=Ferreira |first=Becky |title=Secret Government Info Confirms First Known Interstellar Object on Earth, Scientists Say - A small meteor that hit Earth in 2014 was from another star system, and may have left interstellar debris on the seafloor. |url=https://www.vice.com/en/article/dyp9ez/secret-government-info-confirms-first-known-interstellar-object-on-earth-scientists-say |date=7 April 2022 |work=[[Vice (magazine)|Vice News]] |accessdate=9 April 2022 }}</ref><ref name="INV-20220411">{{cite news |last=Wenz |first=John |title="It Opens A New Frontier Where You're Using The Earth As A Fishing Net For These Objects." - Harvard Astronomer Believes An Interstellar Meteor (or Craft) Hit Earth In 2014 |url=https://www.inverse.com/science/interstellar-meteor-2014-discovery |date=11 April 2022 |work=[[Inverse (website)|Inverse]] |accessdate=11 April 2022 }}</ref> It had a heliocentric speed of 60 km/s and an asymptotic speed of 42.1±5.5 km/s, and it exploded at 17:05:34 UTC near [[Papua New Guinea]] at an altitude of 18.7 km.<ref name="ARX-20190604">{{cite arxiv |last1=Siraj |first1=Amir |last2=Loeb |first2=Abraham |title=Discovery of a Meteor of Interstellar Origin |date=4 June 2019 |arxiv=1904.07224 }}</ref> After declassifying the data in April 2022,<ref name="LS-20220411">{{cite news |last=Specktor |first=Brandon |title=An interstellar object exploded over Earth in 2014, declassified government data reveal - Classified data prevented scientists from verifying their discovery for 3 years.|url=https://www.livescience.com/first-interstellar-object-detected |date=11 April 2022 |work=[[Live Science]] |accessdate=12 April 2022 }}</ref> the [[U.S. Space Command]] confirmed the detection through its [[planetary protection]] sensors.<ref name="TWR-20220406">{{cite news |author=[[United States Space Command]] |title=“I had the pleasure of signing a memo with @ussfspoc’s Chief Scientist, Dr. Mozer, to confirm that a previously-detected interstellar object was indeed an interstellar object, a confirmation that assisted the broader astronomical community. |url=https://twitter.com/US_SpaceCom/status/1511856370756177921 |date=6 April 2022 |work=[[Twitter]] |accessdate=12 April 2022 }}</ref><ref name="NASA-20220408">{{cite news |last1=Handal |first1=Josh |last2=Fox |first2=Karen |last3=Talbert |first3=Tricia |title=U.S. Space Force Releases Decades of Bolide Data to NASA for Planetary Defense Studies |url=https://www.nasa.gov/feature/us-space-force-releases-decades-of-bolide-data-to-nasa-for-planetary-defense-studies |date=8 April 2022 |work=[[NASA]] |accessdate=11 April 2022 }}</ref>}}'''

*[[Interstellar object#Candidates]]

'''{{tq|In April 2022, astronomers reported the possibility that a meteor that impacted Earth in 2014 may have been an interstellar object due to its estimated high initial velocity.<ref name="VICE-202209407" /><ref name="INV-20220411" /><ref name="ARX-20190604" /><ref name="NASA-20220408" />}}'''

hope the above helps in some way - in any case - Stay Safe and Healthy !! - [[User:Drbogdan|Drbogdan]] ([[User talk:Drbogdan|talk]]) 12:30, 12 April 2022 (UTC)

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== Science News at ‘Oumuamua gets a new origin story ==

Here is an article about [https://www.sciencenewsdigital.org/sciencenews/april%2010%202021/MobilePagedArticle.action?articleId=1673167 ‘Oumuamua gets a new origin story] from [[Science News]]. [[User:Rjluna2|Rjluna2]] ([[User talk:Rjluna2|talk]]) 20:46, 25 June 2022 (UTC)

:There's no such story on the site. Perhaps it was taken down - the latest post is: https://www.sciencenews.org/article/oumuamua-interstellar-object-origin-pluto-exoplanet-not-aliens <!-- Template:Unsigned IP --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/50.111.29.1|50.111.29.1]] ([[User talk:50.111.29.1#top|talk]]) 14:16, 31 August 2022 (UTC)</small> <!--Autosigned by SineBot-->