Feeds

Ancient crater lake evidence found on Mars

Dusty bowl once filled with water, probe images show

Top three mobile application threats

A satellite from the European Space Agency (ESA) has photographed the meandering channels of a dried-out river on the surface of Mars.

The Eberswalde crater contains a rare case of a Martian delta (box 3). Channels (box 2) which fed the lake in the crater are very well-preserved. According to the ESA, the delta deposits and channels together provide a clear indication of liquid surface water during the early history of Mars. Photo by: ESA (click to enlarge)

Dark sediments lining the fanned-out delta at the corner of the Eberswalde crater show where little streams once flowed into a lake on Mars' rocky surface.

The photos come from the ESA's Mars Express, which has been focusing on the Eberswalde crater as one of four likely sites still showing evidence of water on Mars. NASA will be sending in a Rover to investigate one of them – The Gale Crater – later this year. Water still exists on Mars – frozen into permafrost and as a vapour in tiny quantities in the atmosphere – but it is believed that there were once oceans and lakes similar to Earth's.

The ESA described the findings: "Small, meandering feeder channels are visible towards the top of the crater, which would have filled it to form a lake."

The agency continued: "This delta structure, first identified with NASA’s Mars Global Surveyor spacecraft, is characteristic of the presence of a lake in the crater at that time. Such features provide a clear indication that liquid water flowed across the surface of Mars in the planet’s early history."

See photos from the Mars Express here. ®

3 Big data security analytics techniques

More from The Register

next story
Fancy joining Reg hack on quid-a-day challenge?
Recruiting now for charity starvation diet
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.