`Antigreenhouse effect' reduces warming of Saturn's moon

Gribbin, John
September 1991
New Scientist;9/21/91, Vol. 131 Issue 1787, p24
The article reports on the antigreenhouse effect that has been discovered on Titan, Saturn's largest moon. Titan, the largest of Saturn's moons, is kept warmer than it would be otherwise by the greenhouse effect of its thick atmosphere. But it would be even warmer if it were not for an "antigreenhouse" effect, caused by a haze layer high in the Titanian stratosphere. This mimics the global cooling effect caused by dust from volcanoes on Earth, and the possible effect of nuclear winter. Planetary scientists were already intrigued by Titan's atmosphere before these new discoveries were made. It is rich in nitrogen and resembles the atmosphere of the Earth before it was modified by living organisms.


Related Articles

  • Atmospheric Titan. Benford, Gregory // Natural History;Apr1974, Vol. 83 Issue 4, p69 

    Focuses on the moons that rotate around the planets of our solar system. What astronomers are learning about these moons; Year in which Gerard P. Kuiper found two frequencies in the sunlight reflected of Titan, a satellite of the planet Saturn; Atmospheric and surface measurements of Titan's...

  • Formation and Evolution of Titan's Atmosphere. Coustenis, Athena // Space Science Reviews;Feb2005, Vol. 116 Issue 1/2, p171 

    The origin and evolution of Titan’s enigmatic atmosphere is reviewed. Starting with the present-day volatile inventory, the question of what was the original composition on Titan and how a satellite of similar size to other Galilean moons managed to acquire and hold on to the required...

  • Release of volatiles from a possible cryovolcano from near-infrared imaging of Titan. Sotin, C.; Jaumann, R.; Buratti, B. J.; Brown, R. H.; Clark, R. N.; Soderblom, L. A.; Baines, K. H.; Bellucci, G.; Bibring, J.-P.; Capaccioni, F.; Cerroni, P.; Combes, M.; Coradini, A.; Cruikshank, D. P.; Drossart, P.; Formisano, V.; Langevin, Y.; Matson, D. L.; McCord, T. B.; Nelson, R. M. // Nature;6/9/2005, Vol. 435 Issue 7043, p786 

    Titan is the only satellite in our Solar System with a dense atmosphere. The surface pressure is 1.5 bar (ref. 1) and, similar to the Earth, N2 is the main component of the atmosphere. Methane is the second most important component, but it is photodissociated on a timescale of 107 years (ref....

  • Titan and the Cassini-Huygens mission. Coustenis, Athena // AIP Conference Proceedings;2006, Vol. 848 Issue 1, p23 

    The Cassini-Huygens mission has initiated its long exploration of the Saturnian system in July 2004, after a 7,5 year trek through our solar system. Since the Saturn Orbit Insertion, we have witnessed the great success of the Huygens mission, the probe descent through Titan’s atmosphere,...

  • Why does Titan have a thick atmosphere? Lorenz, Ralph // Sky & Telescope;60 Greatest Mysteries, p30 

    The article examines the thick atmosphere of Titan, a moon of Saturn. The atmosphere of Titan is comprised mostly of nitrogen. It relates how Titan developed an atmosphere, in which it started cool enough to hold on to materials that can form atmospheric gases. Other factors that allowed Titan...

  • A moon with atmosphere. Croswell, Ken // New Scientist;9/28/91, Vol. 131 Issue 1788, p41 

    Examines the atmosphere of Titan, Saturn's biggest moon. Description of the moon Titan; Voyager's discovery of a nitrogen atmosphere; Possible sources of Titan's nitrogen; Titan's surface mystery; The Cassini mission, a planned mission to Saturn that will be launched in 1996.

  • The changing face of Titan. Lorenz, Ralph D. // Physics Today;Aug2008, Vol. 61 Issue 8, p34 

    The article features Titan, the largest satellite of planet Saturn. A brief historical overview of Titan's discovery is discussed. It explores relevant information brought by the Cassini Huygens mission showing Titan's remarkable Earth-like meteorology. Particular focus is given to Titan's...

  • Methane Rain Falls Mainly on Titan's Plain. Morgan, Richard // Discover;Jan2007, Vol. 28 Issue 1, p41 

    The article states that astronomers have detected methane rain and methane lakes on Titan, the planet Saturn's largest moon, through the use of the Huygens probe. The atmosphere of Titan, which is rich in nitrogen and organic compounds, may be similar to the atmosphere of early Earth. Planetary...

  • Interactive comment on "Maintenance of polar stratospheric clouds in a moist stratosphere" by D. B. Kirk-Davidoff and J.-F. Lamarque.  // Climate of the Past Discussions;2007 Supplement, Vol. 3, pS485 

    The article comments on the paper "Maintenance of Polar Stratospheric Clouds in a Moist Stratosphere" by D. B. Kirk-Davidoff and J. F. Lamarque. It emphasizes the relevance of a paper which examines the association between polar stratospheric cloud and polar warmth during equitable climate. It...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics