How Do You Measure A Sea's Level, Anyway?

There are about 330 million cubic miles of water in the world oceans today, 97% of all the water on the planet. Early in our planet’s 4.5 billion year history, water from the atmosphere and from the interior of the Earth gradually collected in the low areas on the planet’s surface to form the ocean basins, accumulating salts along the way.

This Team Discovers 14 New Species An Hour, But They Have An Enemy

You’ve heard that we know more about space than we do the deep ocean. But did you know it’s so unexplored that scientists discover new species just 200-500 feet down, sometimes at a rate of 14 an hour? A (sort of) manmade enemy threatens those efforts though, and they can’t kill, study, and eat it fast enough.

Earth's Oceans May Have Crash-Landed Via Ancient Asteroids

SimEarth was right about one thing. The best way to wet up a planet? Hurl a bunch of icy asteroids at it. That, at least, is one interpretation of a new study published in the Royal Astronomical Society, which supports the hypothesis that most of our planet’s water crash-landed via space rocks eons ago. And the same process could be making waterworlds all over the galaxy.

Mystery Solved: Here's What Sank The HMAS Sydney 74 Years Ago

The rapid sinking of the HMAS Sydney back in 1941 by Germany’s HSK Kormoran has been a controversial topic for many years. While the captain of the Kormoran stated a direct salvo to the bridge quickly disabled the light cruiser, the account was only confirmed definitively days ago by high resolution images and video captured by Curtin University.

Beautiful NASA Satellite Photos Reveal South Korea's Seaweed Farms

Here’s some awesome shots from NASA’s Goddard Space Flight Center showing the intricate puzzle of seaweed farms in South Korea. The sea fields of seaweed are grown on ropes strung along the southern coast of South Korea around Sisan Island. It makes for a beautiful image when seen from afar.

This Tiny Shark Has Only Been Seen Once Before

This very small (and adorable) shark is only the second of its kind ever discovered, and he’s showing scientists how much we still have to learn about life under the sea.

Artist's Trash Exhibitions Depict A Planet Colonised By Plastic

Landfills, e-waste piles and ocean garbage patches are a part of our world we’d rather not see, but these eyesores aren’t going away. Rather than simply accept that our planet is being swallowed by garbage, one artist has started turning this discarded junk into something beautiful.

Zombie Worms Feasted On The Bones Of Ancient Marine Reptiles

There’d be a lot more plesiosaurs in the fossil record, if it wasn’t for all the damn zombie worms. At least, that’s one interpretation of a new study which shows that Osedax, better known as the zombie worm, devoured the bones of marine reptiles 100 million years ago.

Ancient, Predatory 'Lobster' Is An Ancestor To All Modern Arthropods

More than 250 million years before the first dinosaur, the most fearsome killers on Earth may have been lobsters. Yawunik kootenayi, a common ancestor to spiders, prawns and butterflies, was a predatory “lobster-like” creature that ruled the seas half a billion years ago.

CSIRO's New Research Vessel Is Off To Science The Southern Ocean

Even with the government’s dubious stance on science, it hasn’t stopped CSIRO from doing what it does best. The organisation’s recently-commissioned RV Investigator, a purpose-built research ship, set sail last week for the Southern Ocean in a bid to further our understanding of climate change.