Jonathan Grupper

The causes and consequences of solar weather.

Nova follows a group of art conservationists to the ancient Buddhist Temples of the Mustang. There they attempt to restore artwork that has been slowly deteriorating with time.

This 1992 documentary episode examines the intense predator-prey dynamics and high wildlife density within Tanzania's Ngorongoro Crater. Supported by year-round underground springs, the volcanic caldera serves as a self-contained sanctuary for approximately 20,000 animals.

The underwater cinematographer, Rick Rosenthal follows the threatened Bluefin Tuna in their search for a safe refuge along the Atlantic.

In this compelling two-hour special, investigative journalist Beth Karas follows Sam Little, America's most prolific serial killer who confessed to murdering over 90 women in 17 states, in hopes to identify how he got away with murder for so long.

The History Channel looks at the background of the Louisiana Purchase and how Thomas Jefferson's emissaries managed to double the size of the United States with the stroke of a pen.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Seven millions years ago Hawaii rose from the sea a volcanic wasteland, how these islands transformed themselves into paradise is a story that defies the odds and challenges our expectations. Nat Geo WILD takes us on an untamed journey to Hawaii, a place that through an alchemy of fire, ice and water has become an experiment in creation.

Follows a trail of energy into the power centers of the universe. Each program visualizes these realms based on current scientific data and uses state of the art supercomputer simulations. Dive into the heart of a supermassive black hole, fly down onto the toxic landscapes of alien planets and ride along the roiling surface of a star that's about to explode!