Difficulty: Intermediate
USA
Rosetta revisits the exciting scientific discoveries she has made during her time at Comet 67P/Churyumov-Gerasimenko, including the successful search to find Philae. Now it's time to start preparing to descend to the comet for the end of her extraordinary mission.
Difficulty: Intermediate
USA
Here we see a simulation of how the attack happened, and find out what effect it had on the population of great white sharks around the Farallon Islands.
Difficulty: Intermediate
USA
How do sharks communicate? Particularly, how would the sharks around the Farallones all know exactly when to evacuate? Scientists who are working on "shark repellent" may have an explanation.
Difficulty: Intermediate
USA
Although no one will ever be completely certain why it occurred, many things have been learned about both species from the attack.
Difficulty: Beginner
USA
They can flow like a liquid and bounce back like a solid. Masses of fire ants show a duality that intrigues physicists.
Difficulty: Intermediate
USA
Over the last two decades, the environmental crisis of Florida’s Lake Okeechobee has continued to worsen and dominate local headlines. The lake is the nation’s second largest freshwater lake, but due to years of missteps, it’s been producing massive amounts of toxic algae that have closed beaches, destroyed businesses and poisoned swimmers.
Difficulty: Intermediate
USA
Florida might seem like paradise, but water contamination is a big problem, affecting not only the environment, but businesses and the health of the residents.
Difficulty: Intermediate
USA
Agricultural and corporate interests have long dominated Florida legislature, despite protests from residents and a substantial threat to civilians.
Difficulty: Adv-Intermediate
United Kingdom
A look at how lexicographers started creating the Dictionary of the English Language to ensure that everyone spelled words correctly and knew their correct definition.
Difficulty: Beginner
USA
Many secrets remain surrounding the creation of Stonehenge. Archaeologists try to unravel the mystery.
Difficulty: Beginner
United Kingdom
A humorous look at American English from a British point of view.
Difficulty: Beginner
USA
Doreen Cruz from Little Shop of Crafts in New York explains to us how her workplace functions as a creative outlet for both children and adults.
Difficulty: Intermediate
Australia
Coal mining companies and their billionaire owners have titanic plans for Australia. But what disaster course are we on? Take a look to find out what they'd prefer you not to know. Take Action!
Difficulty: Intermediate
USA
A look at the communications of Humpback Whales and other baleen whales, which includes how they sing, why they sing, and why we might consider their vocalizations actual songs.
Difficulty: Intermediate
USA
Ellis Island, the U.S. gateway to immigration from distant lands, has been reopened to visitors, following significant damage from Hurricane Sandy. A visit there, and to the nearby Statue of Liberty, can be emotional, even for those born in the U.S.
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