Autumn Raven

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Undersea Mysteries Mapped by Satellite Gravity Sensors

Space missions reveal hidden hills and buried rifts in the ocean depths.<p>Ancient rifts hide under seafloor sediments along with thousands of uncharted underwater mountains, satellite images revealed on Thursday.<p>Most of the world's deep ocean remains poorly charted, as the fruitless search for the …

In wake of drought and fires, turtle habitat becomes death trap

Biologists strode along the cracked, dry mud surrounding this evaporating north Los Angeles County lake last week, pausing periodically to pick up an emaciated turtle and wash alkaline dust off its head and carapace.<p>"A lot of these animals are severely ill and starving," said Tim Hovey, a state …

Thousands of undersea volcanoes revealed in new map of ocean floor

Scientists have created the highest resolution map yet of the ocean floor, revealing thousands of underwater mountains and extinct volcanoes that were previously unknown.<p>In a study published Thursday in Science, researchers say the new map is at least twice as accurate as the previous version …

A man-made attempt to save the rarest fish on Earth

Olin Feuerbacher took a deep breath and plunged into the warm aquamarine water of a 100,000-gallon concrete and fiberglass tank in the middle of the Mojave Desert.<p>Twenty feet beneath the surface, Feuerbacher inched his way across the bottom, methodically scanning the darkened corners with a …

Why am I the one mosquitos always bite?

Scientists know body odors play a role in who mosquitoes bite most. But they don’t yet completely understand which odors mosquitoes find most …

How To Survive A Hurricane With Household Items

Supermarket sold out of batteries and bottled water? No problem.<p>It’s been a decade since the historic 2004 hurricane season, one of the Atlantic basin’s most active years ever. Four major storms wreaked havoc along the East Coast, causing more than $51 billion in damage. Since then, other …

Hacking

NASA tech finds disaster survivors

Each time your heart beats, your entire body moves -- even if you're unconscious and pinned under a pile of rubble.<p>The vibrations are small, invisible to the human eye, and might just save your life after a major disaster.<p>Researchers at NASA have developed a device that picks up these subtle …

Is the "Buckydiamondoid" the Future of Molecular Electronics?

What happens when you combine a buckyball with a diamondoid? As it turns out something wonderful for the prospects of molecular electronics. In fact, …

California Blue Whales On The Rebound, Study Says

California blue whales are rebounding to historic levels after being hammered by whaling, a University of Washington study says. NPR's Arun Rath talks with Trevor Branch, co-author of the study.<p>Transcript<p>ARUN RATH, HOST:<p>So we've covered death and destruction around the world, domestic violence at …

Ocean algae can evolve fast to tackle climate change: study | Reuters

OSLO (Reuters) - Tiny marine algae can evolve fast enough to cope with climate change in a sign that some ocean life may be more resilient than thought to rising temperatures and acidification, a study showed.<p>People swim in the sea as dried algae is pictured along the coastline in Qingdao, Shandong …

Brazil builds giant Amazon observation tower

<b>Construction has begun on a giant observation tower in the heart of the Amazon basin to monitor climate change.</b><p>The Amazon Tall Tower Observatory is expected to rise 325m from the ground.<p>Its instruments will gather data on greenhouse gases, aerosol particles and the weather in one of the largest …

Hidden Monuments Under Stonehenge Revealed by High-Tech Mapping

Underground images show a large complex of monuments and buildings used in rituals dating back thousands of years.<p><b>An astonishing complex of ancient monuments, buildings, and barrows has lain hidden and unsuspected beneath the Stonehenge area for thousands of years. Scientists discovered the site</b> …

Watch scientists cut open a colossal squid and find eggs inside

Warning: not for the squeamish<p>Enormous squid have fascinated humankind since some of our earliest recorded seafaring days (see: the myth of the Kraken). But it is still rare that we get to see such elusive, majestic creatures up close. Now, anyone with access to YouTube can see what a 770-pound …

The Global Status of Sharks

Human Journey<p>Hunter S. Thompson once wrote “<b>It was the Law of the Sea, they said. Civilization ends at the waterline. Beyond that, we all enter the food chain, and not always right at the top.</b>” While he was talking about piracy and salvage in the Florida Keys, there is an ecological attractiveness …

Looking for a tide almanac? EarthSky recommends …

The tide almanacs recommended here are based on astronomical influences on the tides. They can help you know when to expect high and low tides.<p>Ocean …

California blue whales, once nearly extinct, back at historical levels | Reuters

LOS ANGELES (Reuters) - California blue whales, the largest animals on Earth once driven to near extinction by whaling, have made a remarkable comeback to near historic, 19th-century levels, according to a University of Washington study released on Friday.<p>Blue Whales are seen in this undated …

New plan avoids mud dumping in Barrier Reef Park

The scuba diver social network that could save your life

A new device lets you know what other divers are doing — and when they're in danger<p>For divers swimming hundreds of feet beneath the ocean's surface, communication is a notorious challenge. Crews have developed an extensive language of hand signals to express their needs, but they're hampered by one …

Coral skeletons record changes in ocean temps - Futurity

Just as growth rings from trees offer clues to past climate change, corals can do the same for changes in the ocean.

Climate Change

Scientists find evidence of 'oceans’ at Earth's centre

In a discovery that could explain why water covers so much of our planet's surface, scientists find evidence of vast underground “oceans” trapped hundreds of miles beneath the Earth's surface<p>These huge hidden reservoirs, which may represent nearly three times the water on the world’s surface, would …

Lasers can help damaged teeth grow back, researchers say

When you damage a tooth, your dentist usually uses a filling or a crown to patch it up. But eventually, researchers say that your dentist might just point a laser at it, encouraging the tooth to regrow on its own. While it's no surprise that light causes reactions in the human body, some …

Rare Megamouth Shark Caught Off Japan’s Coast

Wildlife<p>Fishers recently captured a rare megamouth shark, similar to the one depicted in the image above, off the coast of Japan. Photograph by Natural History Museum and Institute/Reuters<p><b>It’s been a banner month for rare shark sightings. Last week a fisher off the coast of Florida caught the</b> …

Glowing shark scares off predators with 'lightsabers'

<b>A glow-in-the-dark shark scares off predators with "lightsaber-like" spines on its back, a study suggests.</b><p>The research was carried out on the velvet belly lanternshark, a small species found in the deep waters of the Atlantic Ocean and Mediterranean Sea.<p>The scientists believe that while the …

This dumbo octopus is cute!

Don’t think an octopus can be cute? Here’s one that is.<p>The NOAA Ship Okeanos Explorer spotted this dumbo octopus during its Gulf of Mexico 2014 …