Cited by 622Astro and Planetary SciencePlanetary Science and ExplorationSpace Science and Extraterrestrial Life

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

The lakes of Titan

Abstract

The surface of Saturn's haze-shrouded moon Titan has long been proposed to have oceans or lakes, on the basis of the stability of liquid methane at the surface. Initial visible and radar imaging failed to find any evidence of an ocean, although abundant evidence was found that flowing liquids have existed on the surface. Here we provide definitive evidence for the presence of lakes on the surface of Titan, obtained during the Cassini Radar flyby of Titan on 22 July 2006 (T16). The radar imaging polewards of 70 degrees north shows more than 75 circular to irregular radar-dark patches, in a region where liquid methane and ethane are expected to be abundant and stable on the surface. The radar-dark patches are interpreted as lakes on the basis of their very low radar reflectivity and morphological similarities to lakes, including associated channels and location in topographic depressions. Some of the lakes do not completely fill the depressions in which they lie, and apparently dry depressions are present. We interpret this to indicate that lakes are present in a number of states, including partly dry and liquid-filled. These northern-hemisphere lakes constitute the strongest evidence yet that a condensable-liquid hydrological cycle is active in Titan's surface and atmosphere, in which the lakes are filled through rainfall and/or intersection with the subsurface 'liquid methane' table.

Overview

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Crossref · 10.1038/nature05438

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  • The idea of methane as a potential solvent for life is gaining interest since the discovery of methane lakes on Titan.

    “Additionally, the idea of methane as a potential solvent for life is gaining interest since the discovery of methane lakes on Titan (Stofan et al., 2007).”

    From The Astrobiology Primer v2.0 (2016) · cites this paper as Stofan et al., 2007

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Metadata

Authors
Stofan, E. R., Elachi, C., Lunine, J. I., Lorenz, R. D., Stiles, B., Mitchell, K. L., Ostro, S., Soderblom, L., Wood, C., Zebker, H., Wall, S., Janssen, M., Kirk, R., Lopes, R., Paganelli, F., Radebaugh, J., Wye, L., Anderson, Y., Allison, M., Boehmer, R., Callahan, P., Encrenaz, P., Flamini, E., Francescetti, G., Gim, Y., Hamilton, G., Hensley, S., Johnson, W. T. K., Kelleher, K., Muhleman, D., Paillou, P., Picardi, G., Posa, F., Roth, L., Seu, R., Shaffer, S., Vetrella, S., & West, R.
Affiliations
  • California Institute of Technology (US)
  • University of Arizona (US)
  • Johns Hopkins University (US)
  • United States Geological Survey (US)
  • Planetary Science Institute (US)
  • Stanford University (US)
  • Goddard Institute for Space Studies (US)
  • Observatoire de Paris (FR)
  • University of Naples Federico II (IT)
  • Laboratoire d'Astrophysique de Bordeaux (FR)
  • Jet Propulsion Laboratory (US)
  • Polytechnic University of Bari (IT)
  • Sapienza University of Rome (IT)
Corresponding author
Stofan, E. R.
Venue
Nature
Published
2007-01
Volume
445
Issue
7123
Pages
61-64
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2054027145
Cited by
595
References
27
Citations by year
2026: 26 · 2025: 19 · 2024: 24 · 2023: 14 · 2022: 19 · 2021: 30 · 2020: 28 · 2019: 33 · 2018: 29 · 2017: 21 · 2016: 30 · 2015: 37 · 2014: 38 · 2013: 28 · 2012: 40
FWCI
30.92
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • Digital Commons - University of South Florida (University of South Florida) (submittedVersion)
  • HAL (submittedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Oskar-Bordeaux (Universite de Bordeaux) (submittedVersion)
Funders
  • National Aeronautics and Space Administration
  • Jet Propulsion Laboratory
Topics
  • Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
  • Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Planetary Science and Exploration
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
Keywords
Titan, methane lakes, liquid methane, ethane, radar backscatter, Cassini flybys, water cycle, Northern Hemisphere, Saturnian satellites

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