Dolphins stranded and saved by local people at Arraial do Cabo, Brazil

The violent side of the ocean captured on film.

Ocean Heroes is highlighting the many people leading the movement to restore the oceans through their actions -- big and small.

Neil DeGrasse Tyson was asked by a reader of TIME magazine, "What is the most astounding fact you can share with us about the Universe?" This is his answer.

a "soup" of floating garbage that is filling our oceans.

best known for his Industrial Scars series

An app that lets us "see" otherwise invisible wavelengths

Racing a ship for fun...

the panels turn on the water in order to follow the sun.

Texel, the island where everything washes up...

the importance of preserving our dark night sky

2012: 8.30pm, Saturday 31 March

a look at how the human body responds to processed versus whole foods.

each of the 100 billion stars in the Milky Way probably has at least one companion planet

Mike deGruy has spent decades looking intimately at the ocean.

Robert Redford calls on the Obama Administration to stop Shell from drilling this summer off the coast of the Arctic National Wildlife Refuge

when he first came in contact with Google Earth.

Time lapse dandelion flower to seed

His most famous works include: the Stavanger Concert House, Tallinn’s city hall and the VM Houses

Dolphins stranded and saved by local people at Arraial do Cabo, Brazil

The violent side of the ocean captured on film.

Ocean Heroes is highlighting the many people leading the movement to restore the oceans through their actions -- big and small.

Neil DeGrasse Tyson was asked by a reader of TIME magazine, "What is the most astounding fact you can share with us about the Universe?" This is his answer.

a "soup" of floating garbage that is filling our oceans.

best known for his Industrial Scars series

An app that lets us "see" otherwise invisible wavelengths

Racing a ship for fun...

the panels turn on the water in order to follow the sun.

Texel, the island where everything washes up...

the importance of preserving our dark night sky

2012: 8.30pm, Saturday 31 March

a look at how the human body responds to processed versus whole foods.

each of the 100 billion stars in the Milky Way probably has at least one companion planet

Mike deGruy has spent decades looking intimately at the ocean.

Robert Redford calls on the Obama Administration to stop Shell from drilling this summer off the coast of the Arctic National Wildlife Refuge

when he first came in contact with Google Earth.

Time lapse dandelion flower to seed

His most famous works include: the Stavanger Concert House, Tallinn’s city hall and the VM Houses