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Lineae

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Low resolution view of lineae on Europa

Linea /ˈlɪnə/ (plural: lineae /ˈlɪnɪ/) is Latin for 'line'.[1] In planetary geology it is used to refer to any long markings, dark or bright, on a planet or moon's surface. The planet Venus and Jupiter's moon Europa have numerous lineae; Saturn's moon Rhea and the dwarf planet Pluto have several.[2][3]

On Mars, recurring slope lineae 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 of Mars.

References

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  1. ^ NASA: Sep 28 2015 Recurring Lineae on slopes at Horowitz Crater
  2. ^ Encrenaz, Therese (2011). "Europa". In Gargaud, Muriel; et al. (eds.). Encyclopedia of Astrobiology. Springer Reference. Vol. 1. Berlin: Springer. p. 512. ISBN 978-3-642-11271-3. OCLC 537271559. The most striking features of Europa's surface are the series of dark streaks, called "lineae" that crisscross the whole globe
  3. ^ Hall III, James A. (2015). Moons of the Solar System: from Giant Ganymede to Dainty Dactyl. Astronomers' Universe. Cham Heidelberg: Springer. p. 93. Bibcode:2016mss..book.....H. doi:10.1007/978-3-319-20636-3. ISBN 978-3-319-20636-3. Lineae: The lineae are lines that cross the surface

See also

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