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The Search for a Second Earth

   2014    Science
Is there another Earth out there with liquid oceans, rocky continents and life like us? Astronomers seek the answer with spectroscopy, direct imaging and telescopes. They hope to find evidence of atmospheres, magnetospheres and signs of life.
Series: How the Universe Works

Total Eclipse

   2010    Science
Once they were dreaded and thought to be dragons eating the sun--but modern science has dispelled mythology and we now look forward to total Solar Eclipses as one of the most spectacular phenomena in the heavens. Explore the complex movements of Earth, Moon and Sun that produce these unusual events and hear details why we may be the only intelligent beings in the known Universe to witness eclipses like we see on Earth. Man-made eclipses also figure into the science in the form of instruments called "coronagraphs." They blot out the sun and reveal its corona, uncovering secrets which, while enlightening, also warn of a disaster that could make our advanced technology crash and burn. Finally, travel into deep space, where the tiny eclipses caused by planets circling distant stars is now beginning to reveal hundreds more stars where "exoplanets" exist... perhaps even those in habitable zones like the Earth.
Series: The Universe
All or Nothing: Arsenal

All or Nothing: Arsenal

2022  Culture
Arnold

Arnold

2023  History
D-Day

D-Day

2013  History
Conquest of the Skies

Conquest of the Skies

2015  Nature
The Crime of the Century

The Crime of the Century

2021  Medicine
Leaving Neverland

Leaving Neverland

2019  Culture