Engineers are designing, building mechanical ray (w/ Video)

(Phys.org) -- Batoid rays, such as stingrays and manta rays, are among nature's most elegant swimmers. They are fast, highly maneuverable, graceful, energy-efficient, can cruise, bird-like, for long distances in the deep, ...

Breaking the ice on icebergs

(Phys.org) -- Icebergs are a natural and beautiful part of Earth's cryosphere, and are closely monitored and studied by scientists around the world.

Full Titanic site mapped for 1st time

Researchers have pieced together what's believed to be the first comprehensive map of the entire 3-by-5-mile Titanic debris field and hope it will provide new clues about what exactly happened the night 100 years ago when ...

Conservationists call for increased focus on coastal ecosystems

The world's coastal marine ecosystems are being overlooked, both in terms of their ecological importance and their potential as a rallying point for conservation. Writing in Aquatic Conservation: Marine and Freshwater Ecosystems ...

First life may have arisen above serpentine rock, researchers say

(PhysOrg.com) -- About 3.8 billion years ago, Earth was teeming with unicellular life. A little more than 4.5 billion years ago, the Earth was a ball of vaporous rock. And somewhere in between, the first organisms spontaneously ...

Deep-sea fish in deep trouble

A team of leading marine scientists from around the world is recommending an end to most commercial fishing in the deep sea, the Earth's largest ecosystem. Instead, they recommend fishing in more productive waters nearer ...

Japan's mega-quake struck in small zone of fault: study

The deadly 9.0-magnitude quake that struck off northeastern Japan on March 11 ruptured a relatively small part of a notorious fault that straddles the Pacific seabed, Japanese scientists reported on Wednesday.

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