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00:23:58
The Nautilus has discovered several well-preserved shipwrecks on their mission, from ancient Greek trading vessels to modern sailboats. Join us as we talk with chief scientist Katy Croff Bell live aboard the Nautilus and see the latest video of their discoveries.

00:03:53
Join Exploratorium educator Ken Finn as he unlocks the mystery behind the black sand (a.k.a. magnetite) at Ocean Beach. This piece explores the origin of magnetite in the Sierra Nevada mountains, its journey down the Sacramento and San Joaquin rivers to the Bay, and the interesting physical properties of this mineral, plus some fun things you can do with it.

00:01:28
Burning Man is a literal hotbed of explosions and fire. Join Exploratorium Senior Scientist Paul Doherty as he looks at the properties that make up fire through the lens of the Burning Man event.

00:00:59
Exploratorium Senior Scientist Paul Doherty explains a double rainbow sighting at Burning Man 2010!

00:20.15
We take a tour of Black Island, and speak with Tony Marchetti who for the last 13 years has been running this vital communications station for the U.S. Antarctic operations.

00:00:21
Adelie Penguins bicker around their nests at Cape Royds, Ross Island, Antarctica.

00:01:08
Adelie penguins contemplate the water near a photographer at a crack in the ice.

00:00:32
Photographer watches Adelie penguins file past him and take to the water in a crack in the sea ice.

00:01:56
Adelie penguins walk right by photographers on their way to a crack in the sea ice.

00:56:57
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week’s “secret” ingredient: CD cases!