Tuesday, December 12, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Titan 'disappearing islands' mystery solved


Posted on Wednesday, 19 April, 2017 | Comment icon 9 comments

Images were taken over a period of several years. Image Credit: NASA/JPL-Caltech/ASI/Cornell
Researchers in France have determined why entire islands have been vanishing from the surface of Titan.
The mystery surrounding Titan's 'magic islands' began in 2013 when photographs taken of its second-largest sea Ligeia Mare by NASA's Cassini spacecraft seemed to show entire islands appearing out of nowhere and then vanishing again a short time later without explanation.

Unlike the oceans here on Earth, the seas of Titan, being composed of liquid hydrocarbons, are believed to be extremely calm with very little movement. To have a whole island appear and disappear within such a short time frame suggested that something else had to be going on.

Now according to researchers from the University of Reims in France, large bubbles of nitrogen, ethane and methane that fizz up from the ocean's depths are likely to be responsible.

The 'magic islands' on the Cassini images, far from being actual landmasses, are simply areas of bubbling liquid that fizz up out of nowhere and disappear again just as quickly.

"Recent observations by Cassini's Radio Detection and Ranging (RADAR) instrument of Titan's large sea, called Ligeia Mare, have shown unexplained and ephemeral bright features, possibly due to rising bubbles," the researchers wrote.

"Here we report that our numerical model, when combined with experimental data found in the literature, shows that Ligeia Mare's bed is a favourable place for nitrogen exsolution."

Source: CNET.com | Comments (9)

Tags: Titan, Island

Recent comments on this story
Comment icon #1 Posted by Zamor on 19 April, 2017, 11:07
Well, I think the shape of the "Island" is way to similar over the years to believe their explanation without further evidence, sounds just like speculations to me!   Zam  
Comment icon #2 Posted by Noxasa on 19 April, 2017, 12:02
Probably due to global warming.
Comment icon #3 Posted by paperdyer on 19 April, 2017, 16:24
And humans can't be blamed as we aren't there, right? Seriously if a gas bubble make an island disappear,  wouldn't the island  have been resting on the bubble(s) in the first place?
Comment icon #4 Posted by Calibeliever on 19 April, 2017, 18:47
Exsolution. Great word!
Comment icon #5 Posted by Parsec on 19 April, 2017, 19:21
Well, if you want to play like that, actually according to the second law of thermodynamics, yes it is.   
Comment icon #6 Posted by Parsec on 19 April, 2017, 21:19
As far as I understand, they are not islands, they only look like ones from satellite images up above.  Apparently they are just a lot of bubbles on the surface, reflecting the light in a manner resembling a solid surface. 
Comment icon #7 Posted by qxcontinuum on 20 April, 2017, 3:49
suppositions and speculations again ... no scientific evidence. Do not believe ...
Comment icon #8 Posted by Calibeliever on 20 April, 2017, 13:11
OK
Comment icon #9 Posted by bison on 21 April, 2017, 0:30
Maybe those 'islands' are something analogous to our algal blooms, which can come and go in relatively short periods of time. 


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6051273
259714
171642

 
Mystery object to be checked for ET signals
12-12-2017
An asteroid thought to have come from another solar system is to be checked for signs of alien technology.
Diver narrowly avoids huge great white shark
12-11-2017
New footage has emerged of a diver's extremely close encounter with the jaws of a monster shark.
Haunted orphanage knocked down in Canada
12-11-2017
The destruction of the centuries-old building has left questions concerning the fate of its ghostly inhabitants.
NASA teases new extrasolar planet discovery
12-11-2017
The space agency will be making an announcement on Thursday about its latest groundbreaking discovery.
Featured Videos
Gallery icon 
Is happiness contagious ?
Posted 12-12-2017 | 0 comments
Is it possible to become happy by hanging out with other people who are happy ?
 
Megalodon - the largest shark in history
Posted 12-11-2017 | 0 comments
A look at Megalodon - a truly monstrous creature that once roamed Eath's oceans.
 
Pizza night - in space
Posted 12-8-2017 | 0 comments
ISS astronauts try their hand at putting together pizzas high up in orbit around the Earth.
 
 View: More videos
Stories & Experiences
Mysterious Headlights
12-10-2017 | Morgan County, Alabama
 
Possibly a child ghost
12-10-2017 | Edgewater, Maryland
 
True story about black-eyed kids
12-10-2017 | Portland oregon
 
Alien or paranormal encounter ?
12-10-2017 | United States
 
Ouija board experience
12-10-2017 | Ohio
 
Strange occurrences
11-15-2017 | Fife
 
Mysterious music box song
11-15-2017 | U.S.A
 
Haunted military house
10-23-2017 | New Zealand
 
Sleep paralysis or real encounter?
10-18-2017 | United Kingdom
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com © 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ