Talk:Exploration of Neptune

A gas giant or an ice giant?

As far as I know, Neptune is an ice giant, not a gas giant. It has extensive atmosphere, and below it, it's covered with an ocean of water and ammonia in both liquid, and icy state. What about sending a boat that could land on the planet? Were there any plans like that? Critto (talk) 14:12, 22 November 2011 (UTC)

Sure, if your boat can withstand pressures in the gigapascal range! That's a rather difficult problem to get around. Double sharp (talk) 17:17, 19 July 2015 (UTC)

Good point about the ice giant vs. gas giant. But afaik even the so-called gas giants have layers of solid (crystal) matter. Inside Jupiter it is just hydrogen for the most part, but at the extreme pressures it is compressed to a solid metal. Whatever the truth is, it would be technically (physically?) impossible to reach these layers with a functioning probe. One could however have stationary probes floating and circling about in the planets dense atmospheres. The pressures here are manageable, it would be like floating on an ocean, except there will be no well-defined surface. And the extreme wind systems will carry the probe round and round the planet in a rather stable trajectory. RhinoMind (talk) 01:43, 3 August 2015 (UTC)

The nomenclature has changed. Years ago, they were considered gas giants, but as it was realized how different Uranus and Neptune are from Jupiter and Saturn, the name was shifted to "ice giant" planets. Skepticalgiraffe (talk) 20:16, 11 June 2020 (UTC)

"missions to the outer Solar System"-template

Hello.

User:Cmglee formerly added a "missions to the outer Solar System"-template here back in July. I Subsequently removed it from the page, mainly because of some errors in the template info. However, I support the idea of a template such as this (if it contains correct information) and would like to discuss it here. The template that I removed is shown to the right.

Summary of missions to the outer Solar System

System Spacecraft	Jupiter Jupiter trojans	Saturn	Uranus Uranus trojans	Neptune Neptune trojans	Pluto Haumea Makemake Eris	Distant minor planets
Pioneer 10	1973 flyby Jupiter and moons
Pioneer 11	1974 flyby Jupiter and moons	1979 flyby Saturn and moons
Voyager 1	1979 flyby Jupiter and moons	1980 flyby Saturn and moons
Voyager 2	1979 flyby Jupiter and moons	1981 flyby Saturn and moons	1986 flyby Uranus and moons	1989 flyby Neptune and moons
Galileo	1995–2003 orbiter Jupiter and moons 1995, 2003 atmospheric Jupiter
Ulysses	1992, 2004 gravity assist Jupiter
Cassini–Huygens	2000 gravity assist Jupiter and moons	2004–2017 orbiter Saturn and moons 2005 lander Titan
New Horizons	2007 gravity assist Jupiter and moons				2015 flyby Pluto and moons	2019 flyby 486958 Arrokoth
Juno	2016–2021 orbiter Jupiter
Europa Clipper	2026– Planned orbiter Jupiter flyby Europa
Lucy	2027– Planned flyby 3548 Eurybates 15094 Polymele 11351 Leucus 21900 Orus 617 Patroclus
Jupiter Icy Moons Explorer	2029– Planned orbiter Jupiter and moons Planned orbiter Ganymede
Dragonfly		2034 Planned lander Titan

One of the errors is the mixing of actual missions and decommissioned and abandoned missions, such as the Ulysses. Maybe someone is able and willing to update and correct the templates info? RhinoMind (talk) 16:38, 27 November 2016 (UTC)

This is supposed to include all missions, past and present, that flew, and Ulysses is certainly among them. Double sharp (talk) 06:57, 18 September 2017 (UTC)

How do you edit this list? Skepticalgiraffe (talk) 20:18, 11 June 2020 (UTC)

External links modified

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Removing large and irrelevant table

I am removing the very large table listing all of the missions, previous and future, to any of the outer solar system planets, since almost all of the list has nothing to do with this article, Exploration of Uranus.

I am replacing this with a link to the article in which the table is embedded, List of missions to the outer planets article. Skepticalgiraffe (talk) 20:20, 11 June 2020 (UTC)