FacebookInstagramTwitterContact

 

BORNEO HOUSING AGENCY: Terrace House in Bengkurong (B$190K, Property Chinese Owned) • Industrial Warehouse in Menglait, Gadong for Rent • Shop house in Gadong (Ground Floor) for Rent • Industrial Shops in Bunut for Sale • Land in Jerudong for Sale • Shop house in Kiulap for Sale (44 years lease, approx 5,000.00 per month rental) • Chempaka Terrace House for Rent (3 bedrooms, B$700.00 per month) • Shop house in Kiarong for Sale (B$380.00) • TEL: +6738732975, +6738839007           >>           Fully furnished office space for rent at Regus Brunei. Call +673-886-2879 or go to www.regus.com.bn           >>           Private Company Urgently Need Houses & Flats for Rent in Bandar Seri Begawan, Kindly Contact the ff. nos. for further information: 242-7623/+673 883-9007           >>           The Seven Stages Of Wayne Rooney: Prodigy To Professional At Man United           >>           Leroy Lita Goal Gives Sisaket Hope In Fight Against Thailand Relegation           >>           Costa's Desire To Re-Join Atletico Sends Chelsea's Transfer Plans Into Chaos           >>           Huddersfield Hero Aaron Mooy Blazes A Trail For Aussie Hopefuls In Europe           >>           Al-Quran Temanku Menceriakan Hidupku           >>           WNBD Semarakkan Suasana Ramadan Dengan Majlis Tadarus           >>           MKM Agihkan Bubur Lambuk           >>           Pelancaran Majlis Khatam 50 Kali           >>           Harambe Remembered, One Year On From His Death At The Zoo           >>           Green Power Ranger Jason David Frank Speaks Out After Being Targeted By Gunman           >>          

 

SHARE THIS ARTICLE




REACH US


GENERAL INQUIRY

[email protected]

 

ADVERTISING

[email protected]

 

PRESS RELEASE

[email protected]

 

HOTLINE

+673 222-0178 [Office Hour]

+673 223-6740 [Fax]

 



Upcoming Events


Melihat Anak Bulan Ramadhan 1438H
May 26th, 2017 | 15:00 PM





Prayer Times


The prayer times for Brunei-Muara and Temburong districts. For Tutong add 1 minute and for Belait add 3 minutes.


Imsak

: 04:33AM

Subuh

: 04:43AM

Syuruk

: 06:06AM

Doha

: 06:30AM

Zohor

: 12:19PM

Asar

: 03:43PM

Maghrib

: 06:29PM

Isyak

: 07:44PM

 



The Business Directory


 

 



Space & Science


  Home > Space & Science


Rivers Of Saturn's Moon Titan Reveal Mars-Like Evolution


Titan's Nile-like feature Vid Flumina, a network of steep-sided canyons filled with liquid hydrocarbons, is clearly visible un the upper left of this image from NASA's Cassini spacecraft.Credit: NASA/JPL-Caltech/ASI

 


 May 19th, 2017  |  11:00 AM  |   953 views

SPACE.COM

 

The evolution of the hydrocarbon-rich surface on Saturn's largest moon, Titan, may have more in common with the history of Mars' dusty landscape than with Earth's dynamic geology, scientists said in new research.

 

By studying the flow of river channels etched into the surfaces of Titan, Mars and Earth, researchers at the Massachusetts Institute of Technology (MIT) found that Titan's topography (surface elevations) more resemble the Red Planet than Earth.

 

The new study, published today (May 18) in the journal Science, also found that Titan has not undergone significant tectonic activity in the recent past.

 

"While the processes that created Titan's topography are still enigmatic, this [research] rules out some of the mechanisms we're most familiar with on Earth," said lead author Benjamin Black, formerly an MIT graduate student and now an assistant professor at the City College of New York.

 

How rivers shaped Earth, Mars (and Titan?)

 

The paths of river networks are intimately tied to the evolution of a planet's topography. On Earth, the motion of tectonic plates continually reshapes the landscape, pushing the crust upward and creating mountains. Rivers react to these obstacles, carving out new channels along paths of least resistance to reach the oceans.

 

Mars' landscape, on the other hand, was shaped mostly by massive asteroid impacts during the Late Heavy Bombardment in the Red Planet's formative years, when vast impact craters were blasted out and huge volcanoes grew. So, any rivers that carved out the ancient channels seen on Mars' parched surface today were not influenced by modern tectonic activity.

 

To gain a better understanding of how Titan's topology evolved, the researchers in the new study compared observations of river networks on Earth, Titan and Mars. Using Titan observations made by NASA's Cassini mission and superimposing them with river networks observed on Earth and Mars, the scientists made notes on how the direction of flow compares with changes in elevation on each world, a metric the researchers called "topographic conformity."

 

"We know something about rivers and something about topography, and we expect that rivers are interacting with topography as it evolves," Black said in a statement. "Our goal was to use those pieces to crack the code of what formed the topography in the first place."

 

A cousin of Mars?

 

The scientists found that the rivers of Titan have more in common with the ancient rivers of Mars. This means the Saturn moon hasn't exhibited tectonic activity for a long time and the early topography of the moon was more likely influenced by the tides of Saturn, which caused changes in the thickness of ice under the moon's surface, the researchers suggested.

 

"It's remarkable that there are three worlds in the solar system where flowing rivers have carved into the landscape, either presently or in the past," said co-author Taylor Perron, associate professor of geology in MIT's Department of Earth, Atmospheric and Planetary Sciences (EAPS) in the same statement. "There's this amazing opportunity to use the landforms the rivers have created to learn how the histories of these worlds are different."

 

Scientists have observed several similarities between Titan and Earth; the thick atmosphere and liquid seas on the Saturn satellite certainly appear to have terrestrial qualities, researchers have said. The moon's methane cycle is also analogous to Earth's water cycle, in which water evaporates into the atmosphere, condenses into clouds and precipitates onto the landscape, creating rivers that flow back into the seas. A similar process is underway in Titan’s atmosphere, just swap the water for methane. But as this new research shows, the scientists said, the similarities to Earth are limited to Titan's atmosphere; the evolution of the moon's topography more closely resembles that of Mars.

 


 

Source:
courtesy of SPACE

by Lan O'Neill

 

If you have any stories or news that you would like to share with the global online community, please feel free to share it with us by contacting us directly at [email protected]

 

Related News


Fisherman Nabbed For Killing Indonesian Over RM500 Debt

 2017-05-29 08:31:43

Sri Lanka Floods: Residents Afraid As More Rain Forecast

 2017-05-29 08:56:08

Thailand To Take On Singapore With $5.7 Billion Airport Overhaul

 2017-05-29 09:22:35