Kasei Valles outflow channel system

Aug 30, 2006
Kasei Valles outflow channel system
Credit: ESA/DLR/FU Berlin (G. Neukum)

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, show the region of Kasei Valles, one of the biggest outflow channel systems on Mars. Kasei is the Japanese word for the planet Mars.

The HRSC obtained these images during orbit 1429 at a ground resolution of approximately 29 metres per pixel. The Kasei Valles region lies approximately between 21° and 28° North at 292.5° East.

Connecting the southern Echus Chasma and the plain Chryse Planitia in the East, Kasei Valles has a width of roughly 500 kilometres and, if Echus Chasma is included, extends for approximately 2500 kilometres.

There are two sets of images in this release, one showing the North branch, one showing the South branch. Both branches extend approximately South-West to North-East, and the images have been rotated one-quarter clockwise so that North is to the right.

Both valley branches exhibit a depth of 2900 metres.

As one of the biggest outflow channel systems on Mars, Kasei Valles was probably formed by gigantic flood events and later additionally shaped by glacial activity.

In the first set of images, the Northern branch of Kasei Valles and the plain Sacra Mensa can be seen. An oval structure at the western edge of the scene is interpreted to be a crater caused by an oblique meteorite impact.

The Southern branch of Kasei Valles and Sacra Mensa, with its 1- to 2-kilometre-deep graben system, Sacra Fossae, is shown in the second set of images. The terraces are up to 30 kilometres wide, located at the base of the walls on both sides of the valley branch.

The colour scene was derived from three HRSC-colour channels. The perspective views have been calculated from the digital terrain model derived from the stereo channels. The 3D anaglyph images were derived from the stereo and nadir channels. Image resolution has been decreased for use on the internet.

Source: ESA

Explore further: Hubble view: Wolf-Rayet stars, intense and short-lived

Related Stories

Video: Floodwaters of Mars

Jan 15, 2014

(Phys.org) —Ten years ago, on 14 January 2004, Mars Express took its very first images of Mars in colour and in 3D.

The floodwaters of Mars

Jun 07, 2013

(Phys.org) —Dramatic flood events carved this impressive channel system on Mars covering 1.55 million square kilometres, shown here in a stunning new mosaic from ESA's Mars Express.

Mars Express and the story of water on Mars

Oct 16, 2006

For a number of decades now, astronomers have wondered about water on Mars. Thanks to ESA's Mars Express, much of the speculation has been replaced with facts. Launched on 2 June 2003, Mars Express has changed ...

Recommended for you

Hubble view: Wolf-Rayet stars, intense and short-lived

6 hours ago

This NASA/European Space Agency (ESA) Hubble Space Telescope picture shows a galaxy named SBS 1415+437 (also called SDSS CGB 12067.1), located about 45 million light-years from Earth. SBS 1415+437 is a Wolf-Rayet ...

NASA image: Stellar sparklers that last

7 hours ago

While fireworks only last a short time here on Earth, a bundle of cosmic sparklers in a nearby cluster of stars will be going off for a very long time. NGC 1333 is a star cluster populated with many young ...

Light echo helps researchers map out parts of galaxy

11 hours ago

Thousands of years before humans invented agriculture, a bright burst of X-rays left the dense neutron star Circinus X-1, located in the faint Southern constellation Circinus. A year and a half ago, those ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.