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Science & Technology

Ocean's deepest depth re-measured

By T.K. Randall
December 8, 2011 · Comment icon 21 comments

Image Credit: Rubén Laguna
The Mariana Trench in the Pacific ocean descends to a staggering depth of almost 11km.
The Center for Coastal and Ocean Mapping used a multibeam echosounder on a hydrographic ship to take the measurements which are some of the most precise ever made and indicate a depth so deep that the bottom extends further down below sea level than Mount Everest extends above it. "We mapped the entire trench, from its northern end at Dutton Ridge, all the way to where it becomes the Yap Trench in the south," said Dr. Jim Gardner.
US scientists have mapped the deepest part of the world's oceans in greater detail than ever before. The Mariana Trench in the western Pacific runs for about 2,500km and extends down to 10,994m.


Source: BBC News | Comments (21)




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Recent comments on this story
Comment icon #12 Posted by skookum 13 years ago
To put things into perspective, check out this link... It's incredible, looking at that who would want to be in that Virgin submarine that isn't much bigger than a car and dive to the bottom.....count me out.
Comment icon #13 Posted by Arko 13 years ago
Indeed, we have managed to explore only a meager 10% of the total water bodies on the earth's crust including both their biotic and abiotic characteristics. There could be numerous undiscovered life forms below there, but you cannot expect such things as Megalodons residing at that depth enduring the incredible aquatic pressure. The life forms would most probably be primitive arthropods like clams or shelly creatures (not to be confused with Shelly, though).
Comment icon #14 Posted by Timonthy 13 years ago
How about an underwater alien base?
Comment icon #15 Posted by ~C.S.M~ 13 years ago
oh man at those deeps findings the descendants of trilobites would be awesome!!!!
Comment icon #16 Posted by Rafterman 13 years ago
can someone explain why these guys are wasting their time doing this ?,what are they trying to achieve,who cares how deep this trench is,I have sailed over it a few times,and the ship didnt wobble,so just what is the point,or maybe its gonna be used to dump trash. "Fat, Drunk, and Stupid is no way to go through life son," Dean Wormer
Comment icon #17 Posted by Doug1029 13 years ago
I wonder if they found Godzilla's summer retreat down there... Now we know what happened to Jimmy Hoffa! Doug
Comment icon #18 Posted by jesspy 13 years ago
It will be very cool to send a robotic sub to explore in that depth, i wonder what kind of interesting living creatures(fish) will they find The sub would be crushed to the size of a tin can before it got there. Well megatron survived it so maybe it will be ok lol. I cant believe how many missions are planned to re-vist the bottom. It is really cool, I hope they find new life forms, there cold be hundreds of un-discovered species. There are many species in shallower depths that were just recently discovered. We know more about the moon then the oceans. To put things into perspective, check out... [More]
Comment icon #19 Posted by Cassea 13 years ago
I actually started having a panic attack when I clicked on that link. It's terrifying.
Comment icon #20 Posted by Skittel 13 years ago
Why search for water on Mars when we can't even search our own planets' entirety first? I mean, I love space as much as the next guy, but let's explore the ocean depths, and the various forests around the world first and learn everything there is to know about where we actually live first. I mean, people want to find alien life so bad...there's no telling what we haven't discovered here yet.
Comment icon #21 Posted by ~C.S.M~ 13 years ago
Why search for water on Mars when we can't even search our own planets' entirety first? I mean, I love space as much as the next guy, but let's explore the ocean depths, and the various forests around the world first and learn everything there is to know about where we actually live first. I mean, people want to find alien life so bad...there's no telling what we haven't discovered here yet. I dont understand....why "first"? there are people doing this and others doing "the other stuff". Whats the problem?


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