# Lineae

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Lineae
> Markdown URL: https://mediated.wiki/source/Lineae.md
> Source: https://en.wikipedia.org/wiki/Lineae
> Source revision: 1344414271
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Long markings on a planet or moon

For other uses, see [La Linea](/source/La_Linea_(disambiguation)).

Low resolution view of lineae on Europa taken by NASAs [Galileo](/source/Galileo_(spacecraft)) spacecraft.

**Linea** [/ˈlɪniːə/](https://en.wikipedia.org/wiki/Help:IPA/English) (plural: **lineae** [/ˈlɪnɪiː/](https://en.wikipedia.org/wiki/Help:IPA/English)) is [Latin](/source/Latin) for 'line'.[1] In [planetary geology](/source/Planetary_geology) it is used to refer to any long markings, dark or bright, on a [planet](/source/Planet) or [moon](/source/Natural_satellite)'s surface. The planet [Venus](/source/Venus) and Jupiter's moon [Europa](/source/Europa_(moon)#Lineae) have numerous lineae; Saturn's moon [Rhea](/source/Rhea_(moon)) and the dwarf planet [Pluto](/source/Pluto) have several.[2][3]

On [Mars](/source/Mars), [recurring slope lineae](/source/Seasonal_flows_on_warm_Martian_slopes) form seasonally on warm Martian slopes as dark downhill streaks, growing during warm seasons and fading in cold seasons. They are thought to be either caused by salty liquid water flows during warm months, or dry grains flowing down in a kind of landslide.

Recurring slope lineae as seen on [Newton crater](/source/Newton_(Martian_crater)) of Mars.

## See also

- [List of lineae on Europa](/source/List_of_lineae_on_Europa)

- [List of lineae on Venus](/source/List_of_geological_features_on_Venus#Lineae)

- [List of lineae on Rhea](/source/List_of_geological_features_on_Rhea#Lineae)

- [List of lineae on Pluto](/source/List_of_geological_features_on_Pluto#Lineae)

## References

1. **[^](#cite_ref-1)** [NASA](/source/NASA): [Sep 28 2015 Recurring Lineae on slopes at Horowitz Crater](https://www.nasa.gov/image-feature/jpl/pia19918/recurring-lineae-on-slopes-at-horowitz-crater/)

1. **[^](#cite_ref-2)** Encrenaz, Therese (2011). ["Europa"](https://books.google.com/books?id=oEq1y9GIcr0C&pg=PA512). In Gargaud, Muriel; et al. (eds.). *Encyclopedia of Astrobiology*. Springer Reference. Vol. 1. Berlin: Springer. p. 512. [ISBN](/source/ISBN_(identifier)) [978-3-642-11271-3](https://en.wikipedia.org/wiki/Special:BookSources/978-3-642-11271-3). [OCLC](/source/OCLC_(identifier)) [537271559](https://search.worldcat.org/oclc/537271559). The most striking features of Europa's surface are the series of dark streaks, called "lineae" that crisscross the whole globe

1. **[^](#cite_ref-3)** Hall III, James A. (2015). *Moons of the Solar System: from Giant Ganymede to Dainty Dactyl*. Astronomers' Universe. Cham Heidelberg: Springer. p. [93](https://books.google.com/books?id=HgmVCgAAQBAJ&pg=PA93). [Bibcode](/source/Bibcode_(identifier)):[2016mss..book.....H](https://ui.adsabs.harvard.edu/abs/2016mss..book.....H). [doi](/source/Doi_(identifier)):[10.1007/978-3-319-20636-3](https://doi.org/10.1007%2F978-3-319-20636-3). [ISBN](/source/ISBN_(identifier)) [978-3-319-20636-3](https://en.wikipedia.org/wiki/Special:BookSources/978-3-319-20636-3). Lineae: The lineae are lines that cross the surface

This planetary geology-related article is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Planetary-geology-stub)
- [t](/source/Template_talk%3APlanetary-geology-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Planetary-geology-stub)

---
Adapted from the Wikipedia article [Lineae](https://en.wikipedia.org/wiki/Lineae) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Lineae?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.