Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Evidence of ancient tsunamis on Mars

RATE THIS! +22
Posted in Science on 20th May, 2016 10:30 AM by AlexMuller

Scientists think they see evidence of two huge tsunamis having once swept across the surface of Mars. They point to satellite data suggesting a major redistribution of sediments over a large region at the edge of the northern lowlands. The US-led team argues that asteroid or comet strikes into an ocean of water could have triggered the giant waves.

 

Such events could only have occurred more than three billion years ago when the planet was wetter and warmer. Today, Mars is dry and very cold, and any impact would merely dig out a dusty hole. But researchers have long speculated that the low, flat terrain in Mars' northern hemisphere could have hosted an ocean if the climate conditions were just right.
 
The nagging doubt with this theory has been the absence of an identifiable shoreline, something the new study could now help explain. If tsunamis regularly inundated the "land", dumping sediments and scouring new flow channels, they could over time have disguised what otherwise would have been an obvious "coast".
 
"Clearly, it's one of the implications of this work: to have tsunamis, you must have an ocean," said Alexis Palmero Rodriguez from the Planetary Science Institute in Tuscon, Arizona.
 
"So, we think this is going to remove a lot of the uncertainty that surrounds the ocean hypothesis. Features that have in the past been interpreted as relating to an ocean have been controversial; they can be explained by several, alternative processes. But the features we are describing - such as up-slope flows including large boulders - can only be explained in terms of tsunami waves," he told BBC News.
 
Dr Rodriguez and colleagues' tsunami findings appeared on Thursday in the journal Scientific Reports. Their work centres on two connected regions of Mars, known as Chryse Planitia and Arabia Terra. The team claims that the sediments observed by satellite betray the action of two ancient mega-tsunamis.

Tags: MarsspaceNASAtsunamiplanetastronomysatelliteresearch

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Science on 2017-07-23 15:50:46
    UK wants continued EU Copernicus participation..read more
    Posted in Science on 2017-07-23 15:41:21
    Scientists find virtual reality can reduce the pain.....read more
    Posted in Science on 2017-07-23 15:36:02
    Depression changes brain structure..read more
    Posted in Science on 2017-07-22 19:37:47
    Moon dust bag sold for $1.8m at New York auction..read more
    Posted in Business on 2017-07-22 19:05:15
    China Plans to Use AI to Gain Global Economic Dominance.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me