▲ 69 ▼ 'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine' (www.livescience.com) submitted 1 year ago by RegularJoe@lemmy.world to c/science@lemmy.world 32 comments fedilink hide all child comments
[–] 0x0@lemmy.zip 1 point 1 year ago (10 children) Isn't planet nine Uranus? permalink fedilink source hideshow 10 child comments replies: [–] Akt0@reddthat.com 8 points 1 year ago* Uranus is the 7th planet, followed by Neptune. Wikipedia on Planet 9 edit: added Planet 9 article permalink fedilink source parent [–] RegularJoe@lemmy.world [S] 3 points 1 year ago (8 children) 1 Mercury. 2 Venus. 3 Earth. 4 Mars. 5 Jupiter. 6 Saturn. 7 Uranus. 8 Neptune. permalink fedilink source parent hideshow 8 child comments replies: [–] LifeInMultipleChoice@lemmy.world 5 points 1 year ago (4 children) I love the ever permanent comet in that image. I like to think it somehow has a tail, yet sits in orbit permalink fedilink source parent hideshow 4 child comments replies: [–] Blue_Morpho@lemmy.world 6 points 1 year ago (3 children) All planets have elliptical orbits just like periodic comets. Comets' elliptic is just more extreme. Mercury, Mars and Venus have tails, they just aren't as visible. permalink fedilink source parent hideshow 3 child comments replies: [–] LifeInMultipleChoice@lemmy.world 3 points 1 year ago (2 children) While I understand they are all elliptical, isn't that the reason they moved Pluto to a dwarf planet, because it's orbit was "to elliptical" and crossing Neptune's orbital path? permalink fedilink source parent hideshow 2 child comments replies: [–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent [–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent [–] victorz@lemmy.world 7 points 1 year ago (2 children) No no, it's Mercury, Venus, Mars, Jupiter, Saturn, The Sun, and The Moon. The seven planets, and days of the week. — Ancient People permalink fedilink source parent hideshow 2 child comments replies: [–] WoodScientist@lemmy.world 1 point 1 year ago (1 child) Happy Day of Odin to you! permalink fedilink source parent hideshow 1 child comment replies: [–] victorz@lemmy.world 1 point 1 year ago Same to you, fellow! permalink fedilink source parent
[–] Akt0@reddthat.com 8 points 1 year ago* Uranus is the 7th planet, followed by Neptune. Wikipedia on Planet 9 edit: added Planet 9 article permalink fedilink source parent
[–] RegularJoe@lemmy.world [S] 3 points 1 year ago (8 children) 1 Mercury. 2 Venus. 3 Earth. 4 Mars. 5 Jupiter. 6 Saturn. 7 Uranus. 8 Neptune. permalink fedilink source parent hideshow 8 child comments replies: [–] LifeInMultipleChoice@lemmy.world 5 points 1 year ago (4 children) I love the ever permanent comet in that image. I like to think it somehow has a tail, yet sits in orbit permalink fedilink source parent hideshow 4 child comments replies: [–] Blue_Morpho@lemmy.world 6 points 1 year ago (3 children) All planets have elliptical orbits just like periodic comets. Comets' elliptic is just more extreme. Mercury, Mars and Venus have tails, they just aren't as visible. permalink fedilink source parent hideshow 3 child comments replies: [–] LifeInMultipleChoice@lemmy.world 3 points 1 year ago (2 children) While I understand they are all elliptical, isn't that the reason they moved Pluto to a dwarf planet, because it's orbit was "to elliptical" and crossing Neptune's orbital path? permalink fedilink source parent hideshow 2 child comments replies: [–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent [–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent [–] victorz@lemmy.world 7 points 1 year ago (2 children) No no, it's Mercury, Venus, Mars, Jupiter, Saturn, The Sun, and The Moon. The seven planets, and days of the week. — Ancient People permalink fedilink source parent hideshow 2 child comments replies: [–] WoodScientist@lemmy.world 1 point 1 year ago (1 child) Happy Day of Odin to you! permalink fedilink source parent hideshow 1 child comment replies: [–] victorz@lemmy.world 1 point 1 year ago Same to you, fellow! permalink fedilink source parent
[–] LifeInMultipleChoice@lemmy.world 5 points 1 year ago (4 children) I love the ever permanent comet in that image. I like to think it somehow has a tail, yet sits in orbit permalink fedilink source parent hideshow 4 child comments replies: [–] Blue_Morpho@lemmy.world 6 points 1 year ago (3 children) All planets have elliptical orbits just like periodic comets. Comets' elliptic is just more extreme. Mercury, Mars and Venus have tails, they just aren't as visible. permalink fedilink source parent hideshow 3 child comments replies: [–] LifeInMultipleChoice@lemmy.world 3 points 1 year ago (2 children) While I understand they are all elliptical, isn't that the reason they moved Pluto to a dwarf planet, because it's orbit was "to elliptical" and crossing Neptune's orbital path? permalink fedilink source parent hideshow 2 child comments replies: [–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent [–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent
[–] Blue_Morpho@lemmy.world 6 points 1 year ago (3 children) All planets have elliptical orbits just like periodic comets. Comets' elliptic is just more extreme. Mercury, Mars and Venus have tails, they just aren't as visible. permalink fedilink source parent hideshow 3 child comments replies: [–] LifeInMultipleChoice@lemmy.world 3 points 1 year ago (2 children) While I understand they are all elliptical, isn't that the reason they moved Pluto to a dwarf planet, because it's orbit was "to elliptical" and crossing Neptune's orbital path? permalink fedilink source parent hideshow 2 child comments replies: [–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent [–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent
[–] LifeInMultipleChoice@lemmy.world 3 points 1 year ago (2 children) While I understand they are all elliptical, isn't that the reason they moved Pluto to a dwarf planet, because it's orbit was "to elliptical" and crossing Neptune's orbital path? permalink fedilink source parent hideshow 2 child comments replies: [–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent [–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent
[–] bjoern_tantau@swg-empire.de 4 points 1 year ago Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not. permalink fedilink source parent
[–] AA5B@lemmy.world 3 points 1 year ago Plus there are other additional bodies similar to Pluto that didn’t make sense to call planets https://en.wikipedia.org/wiki/Dwarf_planet permalink fedilink source parent
[–] victorz@lemmy.world 7 points 1 year ago (2 children) No no, it's Mercury, Venus, Mars, Jupiter, Saturn, The Sun, and The Moon. The seven planets, and days of the week. — Ancient People permalink fedilink source parent hideshow 2 child comments replies: [–] WoodScientist@lemmy.world 1 point 1 year ago (1 child) Happy Day of Odin to you! permalink fedilink source parent hideshow 1 child comment replies: [–] victorz@lemmy.world 1 point 1 year ago Same to you, fellow! permalink fedilink source parent
[–] WoodScientist@lemmy.world 1 point 1 year ago (1 child) Happy Day of Odin to you! permalink fedilink source parent hideshow 1 child comment replies: [–] victorz@lemmy.world 1 point 1 year ago Same to you, fellow! permalink fedilink source parent