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4848e0cc74966c530940a4f4f0daf3c9
2011-02-03 15:05:00

Every day is a bad-air day on Saturn's largest moon, Titan. Blanketed by haze far worse than any smog belched out in Los Angeles, Beijing or even Sherlock Holmes's London, the moon looks like a dirty orange ball. Described once as crude oil without the sulfur, the haze is made of tiny droplets of hydrocarbons with other, more noxious chemicals mixed in. Gunk. Icky as it may sound, Titan is really the rarest of gems: the only moon in our solar system with an atmosphere worthy of a planet. This...

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2010-11-30 11:10:00

By Diana Lutz , Washington University in St. Louis It sounds a bit like spinning straw into gold, but novel metal catalysts may be able to turn greenhouse gases like methane and carbon dioxide into liquid fuels without producing more carbon waste in the process. If fossil fuels burn completely, the end products are carbon dioxide and water. Today the carbon dioxide is a waste product, one that goes into the air "” adding to global warming; or the oceans "” acidifying them; or...

cb14d11c1442ed4f46a709f58609df491
2010-09-22 08:50:00

Titan, one of Saturn's moons, is the only moon in the solar system with an atmosphere "” ten times denser than the atmosphere of Earth. Five years ago, the Cassini"“Huygens mission to Saturn, a collaboration between the European Space Agency and NASA, sent a probe through Titan's atmosphere, revealing that Titan is home to a landscape that includes hills, valleys and most notably lakes. A researcher involved with the mission, Prof. Akiva Bar-Nun of Tel Aviv University's Department...

2010-09-16 20:53:06

In the aftermath of the Deepwater Horizon disaster in the Gulf of Mexico, a team of scientists led by UC Santa Barbara's David Valentine and Texas A&M University's John Kessler embarked on a research cruise with an urgent mission: determining the fate and impact of hydrocarbon gases escaping from a deep-water oil spill. The spill provided a rare opportunity for Valentine, a professor in the Department of Earth Science at UCSB, and Kessler, an assistant professor in the Department of...

1de32e1e7e815e775d67dd2bd32ba4f81
2010-09-13 14:02:41

Giant planet GJ 436b in the constellation Leo is missing something. Would you believe swamp gas? To the surprise of astronomers who have been studying the Neptune-sized planet using NASA's Spitzer Space Telescope, GJ 436b has very little methane (CH4). "Methane should be abundant on a planet of this temperature and size, but we found 7000 times less methane than what the models predict," says Kevin Stevenson of the University of Central Florida (UCF). Stevenson was lead author of a paper...

2010-09-07 15:15:00

DEP to Require Complete Remediation HARRISBURG, Pa., Sept. 7 /PRNewswire-USNewswire/ -- The Department of Environmental Protection is continuing to investigate the source of stray methane gas detected in the Susquehanna River and at six private water wells in Wilmont Township, Bradford County, late last week. "Chesapeake Energy has been working at the direction of DEP to determine the source or sources of the stray gas," said Hanger. "Gas migration is a serious, potentially dangerous...

2010-08-26 08:46:00

HOUSTON, Aug. 26 /PRNewswire/ -- U.S. ethylene prices rose in August, with the September New York Mercantile Exchange's (NYMEX) cleared ethylene settling and expiring at $0.40250 per pound. The contract, which began trading in July 2009, settled for August last month at $0.3225 per pound. Ethylene trades in 100,000-pound lots per contract on the NYMEX's Clearport system and is a building block chemical used in the production of plastic resins and a variety of solvent chemicals, all used...

7f2b10554ba0345bce3f79b3785c2c1b1
2010-08-26 10:42:22

An unusual substance known as "dry water," which resembles powdered sugar, could provide a new way to absorb and store carbon dioxide, the major greenhouse gas that contributes to global warming, scientists reported August 25th at the 240th National Meeting of the American Chemical Society. The powder shows bright promise for a number of other uses, they said. It may, for instance, be a greener, more energy-efficient way of jumpstarting the chemical reactions used to make hundreds of consumer...

2010-07-27 08:15:00

HOUSTON, July 27 /PRNewswire/ -- U.S. ethylene prices fell in July, with the August New York Mercantile Exchange's (NYMEX) cleared ethylene settling and expiring at $0.3225 per pound. The contract, which began trading in July 2009, settled for July last month at $0.34 per pound. Ethylene trades in 100,000-pound lots per contract on the NYMEX's Clearport system and is a building block chemical used in the production of plastic resins and a variety of solvent chemicals, all used in major...

0b6230a45acace45efe642481f3d06f5
2010-07-16 07:20:00

Ontario Lacus, the largest lake in the southern hemisphere of Saturn's moon Titan, turns out to be a perfect exotic vacation spot, provided you can handle the frosty, subzero temperatures and enjoy soaking in liquid hydrocarbon. Several recent papers by scientists working with NASA's Cassini spacecraft describe evidence of beaches for sunbathing in Titan's low light, sheltered bays for mooring boats, and pretty deltas for wading out in the shallows. They also describe seasonal changes in the...


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Saturn's Moon Titan
2004-10-19 04:45:41

Saturn's moon Titan -- Titan is the planet Saturn's largest moon. It is larger than either of the planets Mercury or Pluto and is the second-largest moon in the solar system after Ganymede (it was originally thought to be slightly larger than Ganymede, but recent observations have shown that its thick atmosphere caused overestimation of its diameter). Titan was discovered on March 25, 1655 by the Dutch astronomer Christian Huygens, making it one of the first non-terrestrial moons to be...

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Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
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