Feeds

Scientists reveal Titanic panorama

Fab Huygens composite images

  • alert
  • submit to reddit

Application security programs and practises

New views of Titan are becoming available now that the Cassini-Huygens image analysis teams have had some time to to examine and interpret the probe's photographic data.

The Descent Imager Spectral Radiometer (DISR) captured a long series of photographs as the lander fell towards the surface. The DISR team, which draws on expertise from scientific institutions around the world, has now combined these images, like a jigsaw, to produce different types of views of the surface.

Stereographic projection of Titan's surface seen from Huygens

A stereographic image, for example, resembles an image viewed through a fish-eye lens, and is the same kind of projection as that used to render the Earth's sphere flat for atlases. A gnomonic image, meanwhile, tends to make the surface appear flat, and is used by navigators and aviators in determining the shortest distance between two points. There is a lot of distortion of scale at the edges of a gnomonic view, however.

Current interpretation of the stereographic image (left) is that the brighter areas to the north is higher than the rest of the terrain. The dark lines covering the bright area are thought to be drainage channels cut by flows of liquid methane. Scientists think that some were produced by rainfall run-off, and others by sub-surface flows.

The flows lead down to a shoreline which scientists think has river deltas and sandbars, all familiar geographical features from home.

The brighter shapes to the north east, meanwhile, are thought to be ridges of ice gravel.

There are more images here. ®

Related stories

Say what you like about Saturn: its moons really have atmosphere
ESA flirts with NASA over Jupiter mission
Saturn sings the blues

Build a business case: developing custom apps

More from The Register

next story
Just TWO climate committee MPs contradict IPCC: The two with SCIENCE degrees
'Greenhouse effect is real, but as for the rest of it ...'
BEST BATTERY EVER: All lithium, all the time, plus a dash of carbon nano-stuff
We have found the Holy Grail (of batteries) - boffins
Asteroid's DINO KILLING SPREE just bad luck – boffins
Sauricide WASN'T inevitable, reckon scientists
Flamewars in SPAAACE: cooler fires hint at energy efficiency
Experiment aboard ISS shows we should all chill out for cleaner engines
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
Famous 'Dish' radio telescope to be emptied in budget crisis: CSIRO
Radio astronomy suffering to protect Square Kilometre Array
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Securing Web Applications Made Simple and Scalable
Learn how automated security testing can provide a simple and scalable way to protect your web applications.