First-of-its-kind bird fossil found in Brazil

It dates back approximately 115 million years and reveals a prehistoric bird with long tail feathers, a first-of-its-kind find for South America.

How much do oceans add to world’s oxygen?

Most of Earth's oxygen comes from tiny ocean plants - called phytoplankton - that live near the water's surface and drift with the currents.

Seaweed colonizing ice-free parts of Antarctica

With glaciers melting, the original white, mostly lifeless Antarctica is now becoming darker and lively with seaweed.

Deepest-yet hydrothermal vents discovered in Pacific

Over 3,800 meters (12,500 feet) below the surface, researchers found towering white chimneys venting scalding hot water, colonized by animals that thrive in the toxicity and heat.

New dinosaur nicknamed Hellboy

A close relative of Triceratops, Hellboy has sharp horns on its nose and over its eyes, and also an ornate frill behind its head, likely for sexual display.

Large Hadron Collider back in business

CERN in Switzerland announced today that a new research season has begun for the Large Hadron Collider, following a $150 million overhaul.

Strong earthquake strikes off Oregon coast

No tsunami warming, no apparent problems, from this 5.8-magnitude earthquake that struck in the ocean 281 miles west of Waldport, Oregon.

NOAA forecasts slow 2015 Atlantic hurricane season

NOAA forecasts 6-11 named storms, 3-6 hurricanes, and 0-2 major hurricanes.

Now is the time to prepare for hurricanes

Atlantic hurricane season officially begins June 1 and lasts through November. Preparing in advance saves lives. Some tips to help you plan, here.

Humans tell whales apart by their voices

Detailed analysis of a particular type of call - known as an upcall - let human researchers single out whales as individuals.