hn-classics/_stories/1930/9872387.md

722 lines
20 KiB
Markdown
Raw Normal View History

2018-02-23 18:19:40 +00:00
[Source](https://www.sciencenews.org/archive/suns-new-trans-neptunian-planet "Permalink to The Sun's New Trans-Neptunian Planet | Science News")
# The Sun's New Trans-Neptunian Planet | Science News
[Skip to main content][2]
[Menu][3] [Search][3] [Science News][4]
## Donate
* [Donate][5]
## Account
[Log In][6]
## The Society
* [The Society][7]
* [Science News][8]
* [Science News for Students][9]
* [Student Science][10]
![Science News][11]
## [Science News][12]
MISSION CRITICAL
Support credible science journalism.
Subscribe to _Science News _today.
[SUBSCRIBE][13]
* [ Menu ][14]
* [ Topics ][15]
* [ Atom & Cosmos ][16]
* [ Body & Brain ][17]
* [ Earth & Environment ][18]
* [ Genes & Cells ][19]
* [ Life & Evolution ][20]
* [ Humans & Society ][21]
* [ Math & Technology ][22]
* [ Matter & Energy ][23]
* [ Blogs ][24]
* [ Context | Tom Siegfried ][25]
* [ Growth Curve | Laura Sanders ][26]
* [ Scicurious | Bethany Brookshire ][27]
* [ Science Ticker | Science News Staff ][28]
* [ Science & the Public | Science News Staff ][29]
* [ Wild Things | Sarah Zielinski ][30]
* [ Editor's Picks ][31]
* [ Top stories of 2017 ][32]
* [ Favorite books of 2017 ][33]
* [ Gravitational waves ][34]
* [ Eclipse 2017 ][35]
* [ Cassini mission to Saturn ][36]
* [ See More ][31]
* [ Magazine ][37]
![3/03 cover][38]][39]
In the March 3 _SN_: Redefining dinosaurs, minibrain recipes, how flu spreads, lions vs. zebras, Venus prospects, a whale speaks and more. 
[Current Issue][39]
## Explore
* ### Topics
* [Atom & Cosmos][16]
* [Biology][40]
* [Chemistry][41]
* [Doing Research][42]
* [Earth Sciences][43]
* [Environmental Science][44]
* [Other Disciplines][45]
* [Physics][46]
* ### Blogs
* [Context][25]
* [Growth Curve][47]
* [Scicurious][27]
* [Science Ticker][28]
* [Science & the Public][29]
* [Wild Things][30]
* [Culture Beaker][48]
* [Gory Details][49]
* ### Editor's Picks
* [2017 Top 10][32]
* [Favorite books of 2017][33]
* [Gravitational waves][50]
* [AGU 2017][51]
* [Scientists to Watch][52]
* [Nobels 2017][53]
* [Cassini mission to Saturn][36]
* [Eclipse 2017][35]
* ### SN Magazine
* [March 3, 2018][54]
* [February 17, 2018][55]
* [February 3, 2018][56]
* [January 20, 2018][57]
* [December 23, 2017][58]
* [December 9, 2017][59]
* [November 25, 2017][60]
* [November 11, 2017][61]
[Latest][62] [Most Viewed][62]
### All News
Sort by Published atMost Viewed
* Science Visualized
[New mapping shows just how much fishing impacts the world's seas][63]
February 22, 2018
by Carolyn Gramling
* Science Stats
[Global Virome Project is hunting for more than 1 million unknown viruses ][64]
February 22, 2018
by Laurel Hamers
* News
[Cave art suggests Neandertals were ancient humans' mental equals ][65]
February 22, 2018
by Bruce Bower
* News in Brief
[The last wild horses aren't truly wild][66]
February 22, 2018
by Erika Engelhaupt
* Editor's Note
[Building a bright future for science journalism][67]
February 22, 2018
by Nancy Shute
* Society Update
[Congratulations to the 40 Regeneron Science Talent Search finalists!][68]
* Letters to the Editor
[Readers weigh in on human gene editing and more][69]
February 22, 2018
by Science News Staff
* 50 Years Ago
[50 years ago, early organ transplants brought triumph and tragedy][70]
February 22, 2018
by Bethany Brookshire
* Feature
[New fossils are redefining what makes a dinosaur][71]
February 21, 2018
by Carolyn Gramling
* News in Brief
[An amateur astronomer caught a supernova explosion on camera][72]
February 21, 2018
by Lisa Grossman
* Growth Curve
[A new study eases fears of a link between autism and prenatal ultrasounds][73]
February 21, 2018
by Laura Sanders
* Society Update
[Changing toothpastes? Change your toothbrush][74]
* News in Brief
[A fake organ mimics what happens in the blink of an eye][75]
February 20, 2018
by Maria Temming
* Feature
[How to build a human brain][76]
February 20, 2018
by Ingfei Chen
* Science & the Public
[Are computers better than people at predicting who will commit another crime?][77]
February 20, 2018
by Maria Temming
* It's Alive
[The flowers that give us chocolate are ridiculously hard to pollinate][78]
February 20, 2018
by Susan Milius
* Exhibit
[Modern tech unravels mysteries of Egyptian mummy portraits][79]
February 19, 2018
by Howard Wolinsky
* Society Update
[Congratulations to the 2018 Regeneron Science Talent Search Top 300 Scholars][80]
* Mystery Solved
[Mix of metals in this Picasso sculpture provides clues to its mysterious origins][81]
February 19, 2018
by Kate Travis
* News in Brief
[Babies can recover language skills after a left-side stroke][82]
February 18, 2018
by Laurel Hamers
* News in Brief
[This stick-on patch could keep tabs on stroke patients at home][83]
February 17, 2018
by Maria Temming
* News
[Americans would welcome alien life rather than fear it][84]
February 16, 2018
by Maria Temming
* News
[Ants practice combat triage and nurse their injured ][85]
February 16, 2018
by Susan Milius
* Society Update
[Top 10 Society stories of the year][86]
* How To
[James Webb Space Telescope challenges artists to see in infrared][87]
February 16, 2018
by Lisa Grossman
* News
[To hear the beat, your brain may think about moving to it][88]
February 16, 2018
by Dan Garisto
* News in Brief
[Strong winds send migrating seal pups on lengthier trips][89]
February 15, 2018
by Carolyn Gramling
* News
[Household products make surprisingly large contributions to air pollution][90]
February 15, 2018
by Laurel Hamers
* News
[Fossil footprints may put lizards on two feet 110 million years ago][91]
February 15, 2018
by Helen Thompson
* Society Update
[Broadcom MASTERS 2017 awards $100,000 in prizes][92]
* News in Brief
[In Borneo, hunting emerges as a key threat to endangered orangutans][93]
February 15, 2018
by Bruce Bower
* News
[Look to penguins to track Antarctic changes][94]
February 14, 2018
by Carolyn Gramling
* News
[Study debunks fishy tale of how rabbits were first tamed][95]
February 14, 2018
by Tina Hesman Saey
* News
[Cutting off a brain enzyme reversed Alzheimer's plaques in mice][96]
February 14, 2018
by Aimee Cunningham
* News
[Quantum computers go silicon ][97]
February 14, 2018
by Emily Conover
* Society Update
[Congratulations Broadcom MASTERS 2017 finalists!][98]
* Science Ticker
[Shipping noise can disturb porpoises and disrupt their mealtime][99]
February 13, 2018
by Dan Garisto
* News
[Genes could record forensic clues to time of death][100]
February 13, 2018
by Erika Engelhaupt
* News
[New technique shows how 2-D thin films take the heat][101]
February 13, 2018
by Maria Temming
* News
[Elongated heads were a mark of elite status in an ancient Peruvian society][102]
February 13, 2018
by Bruce Bower
* News
[What will it take to go to Venus?][103]
February 13, 2018
by Lisa Grossman
* Society Update
[Conversations with Maya][104]
* Science Ticker
[Even after bedbugs are eradicated, their waste lingers ][105]
February 12, 2018
by Laurel Hamers
* How Bizarre
[14 cattle eyeworms removed from Oregon woman's eye][106]
February 12, 2018
by Aimee Cunningham
* News
[5 ways the heaviest element on the periodic table is really bizarre ][107]
February 12, 2018
by Dan Garisto
* News in Brief
[Ancient ozone holes may have sterilized forests 252 million years ago][108]
February 12, 2018
by Carolyn Gramling
* Science & the Public
[4 questions about the new U.S. budget deal and science][109]
February 09, 2018
by Emily DeMarco
[View More][110]

Feature
# The Sun's New Trans-Neptunian Planet
Magazine issue: 
Magazine issue: [Vol. 17 #467, March 22, 1930][111]
By
[Science News][112]
12:00am, March 22, 1930
This article is available only to subscribing members. [Join][113] the Society today or [Log in][114].
![][115]
* [Science News][116]
* [Science News for Students][117]
* [Student Science][10]
* [Society for Science & the Public][7]
* [Join the Society][118]
* [Gift Memberships][119]
* [Donate][5]
* [Renew][120]
* [Advertise][121]
* [About Science News][122]
* [FAQ][123]
* [Careers][124]
* [Contact Us][125]
* [Rights and Permissions][126]
* [Legal][127]
* [Privacy Policy][128]
## Follow Us
* [Science News on Twitter][129]
* [Science News on Facebook][130]
* [Science News on Google+][131]
## The Society
* [The Society][7]
* [Science News][8]
* [Science News for Students][9]
* [Student Science][10]
* [Comment Policy][132]
* [RSS][133]
* [My Account][134]
* [Newsletter][135]
## Contact Information & Copyright
1719 N Street, N.W. , Washington, D.C. 20036|202.785.2255|© Society for Science & the Public 2000 - 2018. All rights reserved.
* [__Home][4]
* [__Topics][15]
* [__Atom & Cosmos][16]
* [__Body & Brain][17]
* [__Earth & Environment][18]
* [__Genes & Cells][19]
* [__Humans & Society][21]
* [__Life & Evolution][20]
* [__Math & Technology][22]
* [__Matter & Energy][23]
* [__Blogs][24]
* [__Context | Tom Siegfried][25]
* [__Growth Curve | Laura Sanders][26]
* [__Scicurious | Bethany Brookshire][27]
* [__Science Ticker | Science News Staff][28]
* [__Science & the Public | Science News Staff][29]
* __[Wild Things | Sarah Zielinski][30]
* __[Editor's Picks][31]
* __[Top stories of 2017][32]
* __[Favorite books of 2017][33]
* __[Gravitational waves][50]
* __[Eclipse 2017][35]
* __[Cassini mission to Saturn][36]
* __[See all Editor's Picks][31]
* __[Science News Magazine][37]
* __[Like us on Facebook][130]
* __[Follow us on Twitter][129]
* __[Visit us on YouTube][136]
* __[Subscribe via RSS][133]
![][137]
![][138]
[1]: https://www.facebook.com/tr?id=156678234768138&ev=PageView&noscript=1
[2]: https://www.sciencenews.org#main-content
[3]:
[4]: https://www.sciencenews.org/
[5]: https://www.societyforscience.org/donate
[6]: https://www.sciencenews.org/user/login
[7]: https://www.societyforscience.org
[8]: https://www.sciencenews.org
[9]: https://www.sciencenewsforstudents.org
[10]: https://student.societyforscience.org
[11]: https://www.sciencenews.org/profiles/sn/themes/science_news/logo.png
[12]: https://www.sciencenews.org/ "Home"
[13]: https://pages.societyforscience.org/science-news-support-subscribe-2?utm_source=sciencenews&utm_medium=cta&utm_campaign=missioncritical-cta&tfa_3134=missioncritical-cta
[14]: https://www.sciencenews.org/ "Menu"
[15]: https://www.sciencenews.org/topics
[16]: https://www.sciencenews.org/topic/atom-cosmos
[17]: https://www.sciencenews.org/topic/body-brain
[18]: https://www.sciencenews.org/topic/earth-environment
[19]: https://www.sciencenews.org/topic/genes-cells
[20]: https://www.sciencenews.org/topic/life-evolution
[21]: https://www.sciencenews.org/topic/humans-society
[22]: https://www.sciencenews.org/topic/math-technology
[23]: https://www.sciencenews.org/topic/matter-energy
[24]: https://www.sciencenews.org/blogs
[25]: https://www.sciencenews.org/blog/context
[26]: https://www.sciencenews.org/growthcurve
[27]: https://www.sciencenews.org/blog/scicurious
[28]: https://www.sciencenews.org/blog/science-ticker
[29]: https://www.sciencenews.org/blog/science-public
[30]: https://www.sciencenews.org/blog/wild-things
[31]: https://www.sciencenews.org/editors-picks
[32]: https://www.sciencenews.org/editors-picks/2017-top-10
[33]: https://www.sciencenews.org/editors-picks/favorite-books-2017
[34]: https://www.sciencenews.org/editors-picks/gravitational-waves?mode=pick&context=163
[35]: https://www.sciencenews.org/editors-picks/eclipse-2017
[36]: https://www.sciencenews.org/editors-picks/cassini-mission-saturn
[37]: https://www.sciencenews.org/magazine/archive
[38]: https://www.sciencenews.org/sites/default/files/styles/user-thumbnail-large-lz/public/2018/02/030318_cover_lg.jpg?itok=_ySkjhrl
[39]: https://www.sciencenews.org/sn-magazine/march-3-2018?mode=pick&context=2775
[40]: https://www.sciencenews.org/topic/biology
[41]: https://www.sciencenews.org/topic/chemistry-0
[42]: https://www.sciencenews.org/topic/doing-research
[43]: https://www.sciencenews.org/topic/earth-sciences
[44]: https://www.sciencenews.org/topic/environmental-science
[45]: https://www.sciencenews.org/topic/other-disciplines
[46]: https://www.sciencenews.org/topic/physics-0
[47]: https://www.sciencenews.org/blog/growth-curve
[48]: https://www.sciencenews.org/blog/culture-beaker
[49]: https://www.sciencenews.org/blog/gory-details
[50]: https://www.sciencenews.org/editors-picks/gravitational-waves
[51]: https://www.sciencenews.org/editors-picks/agu-2017
[52]: https://www.sciencenews.org/editors-picks/sn10-scientists-to-watch-2017
[53]: https://www.sciencenews.org/editors-picks/nobels-2017
[54]: https://www.sciencenews.org/sn-magazine/march-3-2018
[55]: https://www.sciencenews.org/sn-magazine/february-17-2018
[56]: https://www.sciencenews.org/sn-magazine/february-3-2018
[57]: https://www.sciencenews.org/sn-magazine/january-20-2018
[58]: https://www.sciencenews.org/sn-magazine/december-23-2017
[59]: https://www.sciencenews.org/sn-magazine/december-9-2017
[60]: https://www.sciencenews.org/sn-magazine/november-25-2017
[61]: https://www.sciencenews.org/sn-magazine/november-11-2017
[62]: https://www.sciencenews.org#
[63]: https://www.sciencenews.org/article/new-mapping-shows-just-how-much-fishing-impacts-world-seas
[64]: https://www.sciencenews.org/article/global-virome-project-unknown-virus-outbreak
[65]: https://www.sciencenews.org/article/cave-art-suggests-neandertals-were-ancient-humans-mental-equals
[66]: https://www.sciencenews.org/article/last-wild-horses-arent-truly-wild
[67]: https://www.sciencenews.org/article/building-bright-future-science-journalism
[68]: https://www.sciencenews.org/sponsored/congratulations-40-regeneron-science-talent-search-finalists
[69]: https://www.sciencenews.org/article/readers-weigh-human-gene-editing-and-more
[70]: https://www.sciencenews.org/article/50-years-ago-early-organ-transplants-brought-triumph-and-tragedy
[71]: https://www.sciencenews.org/article/new-fossils-are-redefining-what-makes-dinosaur
[72]: https://www.sciencenews.org/article/supernova-amateur-astronomer-camera
[73]: https://www.sciencenews.org/blog/growth-curve/autism-prenatal-ultrasound-study
[74]: https://www.sciencenews.org/sponsored/changing-toothpastes-change-your-toothbrush
[75]: https://www.sciencenews.org/article/fake-organ-mimics-what-happens-blink-eye
[76]: https://www.sciencenews.org/article/how-build-human-brain
[77]: https://www.sciencenews.org/blog/science-public/are-computers-better-people-predicting-who-will-commit-another-crime
[78]: https://www.sciencenews.org/article/flowers-give-us-chocolate-are-ridiculously-hard-pollinate
[79]: https://www.sciencenews.org/article/modern-tech-unravels-mysteries-egyptian-mummy-portraits
[80]: https://www.sciencenews.org/sponsored/congratulations-2018-regeneron-science-talent-search-top-300-scholars
[81]: https://www.sciencenews.org/article/metals-picasso-bronze-sculptures
[82]: https://www.sciencenews.org/article/babies-language-brain-stroke
[83]: https://www.sciencenews.org/article/wearable-sensor-patch-stroke-patients
[84]: https://www.sciencenews.org/article/americans-would-welcome-alien-life-rather-fear-it
[85]: https://www.sciencenews.org/article/ants-practice-combat-triage-and-nurse-their-injured
[86]: https://www.sciencenews.org/sponsored/top-10-society-stories-year
[87]: https://www.sciencenews.org/article/james-webb-space-telescope-challenges-artists-see-infrared
[88]: https://www.sciencenews.org/article/hear-beat-your-brain-may-think-about-moving-it
[89]: https://www.sciencenews.org/article/strong-winds-send-migrating-seal-pups-lengthier-trips
[90]: https://www.sciencenews.org/article/household-products-make-surprisingly-large-contributions-air-pollution
[91]: https://www.sciencenews.org/article/fossil-footprints-may-put-lizards-two-feet-110-million-years-ago
[92]: https://www.sciencenews.org/sponsored/broadcom-masters-2017-awards-100000-prizes
[93]: https://www.sciencenews.org/article/borneo-hunting-emerges-key-threat-endangered-orangutans
[94]: https://www.sciencenews.org/article/look-penguins-track-antarctic-changes
[95]: https://www.sciencenews.org/article/study-debunks-fishy-tale-how-rabbits-were-first-tamed
[96]: https://www.sciencenews.org/article/cutting-brain-enzyme-reversed-alzheimers-plaques-mice
[97]: https://www.sciencenews.org/article/quantum-computers-go-silicon
[98]: https://www.sciencenews.org/sponsored/congratulations-broadcom-masters-2017-finalists
[99]: https://www.sciencenews.org/blog/science-ticker/noise-pollution-ships-porpoises
[100]: https://www.sciencenews.org/article/genes-could-record-forensic-clues-time-death
[101]: https://www.sciencenews.org/article/new-technique-shows-how-2-d-thin-films-take-heat
[102]: https://www.sciencenews.org/article/elongated-heads-were-mark-elite-status-ancient-peruvian-society
[103]: https://www.sciencenews.org/article/what-will-it-take-go-venus
[104]: https://www.sciencenews.org/sponsored/conversations-maya
[105]: https://www.sciencenews.org/blog/science-ticker/bedbugs-feces-histamine-infestation
[106]: https://www.sciencenews.org/article/14-cattle-eyeworms-removed-oregon-woman-eye
[107]: https://www.sciencenews.org/article/5-ways-heaviest-element-periodic-table-really-bizarre
[108]: https://www.sciencenews.org/article/ancient-ozone-holes-may-have-sterilized-forests-252-million-years-ago
[109]: https://www.sciencenews.org/blog/science-public/4-questions-about-new-us-budget-deal-and-science
[110]: https://www.sciencenews.org/search?sort_by=published_at
[111]: https://www.sciencenews.org/sn-magazine/march-22-1930
[112]: https://www.sciencenews.org/author/science-news
[113]: https://pages.societyforscience.org/science-news-support-subscribe-2?utm_source=sciencenews&utm_medium=paywall&utm_campaign=paywall&tfa_3134=paywall
[114]: https://www.sciencenews.org/user/login?destination=node/32694
[115]: https://www.sciencenews.org/sites/default/files/images/paywall_2018.png
[116]: https://www.sciencenews.org "Science News"
[117]: https://www.sciencenewsforstudents.org/
[118]: https://pages.societyforscience.org/champion-join-2?utm_source=sciencenews&utm_medium=footer&utm_campaign=sn-footer&tfa_3134=sn-footer
[119]: https://www.societyforscience.org/gift?tfa_3134=sn-footer
[120]: https://sciencenewssubscriberservice.com/psacomplete/index.php
[121]: https://www.sciencenews.org/advertise-science-news
[122]: https://www.sciencenews.org/about-science-news
[123]: https://www.sciencenews.org/frequently-asked-questions
[124]: https://www.societyforscience.org/jobs-and-internships
[125]: https://www.sciencenews.org/contact-us
[126]: https://www.sciencenews.org/permission-republish "Rights and Permissions"
[127]: https://www.societyforscience.org/legal
[128]: https://www.societyforscience.org/privacy-policy
[129]: https://twitter.com/ScienceNews
[130]: https://www.facebook.com/sciencenews
[131]: https://plus.google.com/107228414418338154221/posts
[132]: https://www.societyforscience.org/guidelines-online-communities-and-social-media
[133]: https://www.sciencenews.org/feeds/headlines.rss
[134]: https://www.sciencenews.org/user "My Account"
[135]: https://www.sciencenews.org/newsletters
[136]: https://www.youtube.com/user/ScienceNewsSSP/featured
[137]: //googleads.g.doubleclick.net/pagead/viewthroughconversion/871471566/?guid=ON&script=0
[138]: //www.googleadservices.com/pagead/conversion/1049901432/?label=muWRCLiy_W4Q-PLQ9AM&guid=ON&script=0