QUEST follows a group of UC Berkeley scientists to the top of a 320-foot redwood in Mendocino County. Only 5 percent of these ancient redwoods survived our voracious desire for their hardy and plentiful wood. Now scientists are trying to predict how the remaining ones and their descendants might fare in the face of climate change in the decades to come.
Most nature photographers put their cameras away at night. Not Steven Christenson. As the co-founder of the very successful Bay Area Night Photography group, he guides like-minded, low-light photographers to find interesting subjects after the sun goes down. Steven reveals his special process of photographing star trails for Your Photos on QUEST.
Cheese. It comes in more than 2,000 varieties — hard, soft, fresh and aged – and it's been with us for thousands of years. Take a journey to Cowgirl Creamery in West Marin to learn how artisan cheese is made and how scientists are putting cheese under the microscope to gain new insights about this incredible, edible food.
Entomologist Brian Fisher braves raging rivers, and dense tropical forests as he travels the world searching for new species of ants before they are lost to habitat destruction. Experience a slice of Fisher's life and work through video footage from his field work with ants in Madagascar.
QUEST ventures under a Central Valley bridge to count the bats that make it their home. The bridge is one of the most important roosting places for Mexican free-tailed bats in the Central Valley, where this voracious insect-eating species protects the local crops from pests. Then meet two volunteers who take injured bats into their homes and nurse them to health.
Solar and wind power may get the headlines when it comes to renewable energy. But another type of clean power is heating up in the hills just north of Sonoma wine country. The Geysers, the world's largest power-producing geothermal field, has been providing electricity for roughly 850,000 Northern California households, and is set to expand even further.
After multiple unmanned missions to Mars, we still don't know if life has ever existed there. NASA scientists are hoping a new high-tech rover will help them solve the mystery. The Mars Science Laboratory is scheduled for launch in late 2011 and will search for any evidence that the Red Planet was once capable of supporting life.
Thousands of northern elephant seals — some weighing up to 4,500 pounds — make an annual migration to breed each winter at Año Nuevo State Reserve, on the San Mateo County coast. Marine biologists are using high-tech tools to explore the secrets of these amazing creatures, which can hold their breath for an hour and dive a mile below the surface.
It's been a harsh winter across the US. Snow has blanketed the Sierra Nevada, where the snowpack is well above normal. Lots of snow means good skiing, but it also means an increased danger of avalanches. Lauren Sommer travels to Lake Tahoe where researchers are trying to understand the inner workings of snow a little bit better.
QUEST's web-only video series, Science on the SPOT, takes a close-up look at the Peregrine Falcon.
Fifteen months after a native plant thought to be extinct was rediscovered in San Francisco, local botanists have succeeded in growing it and are making plans to plant it out in the wild.
QUEST explores how the San Francisco Botanical Garden is toiling to bring one of the city's rarest native plants, the Franciscana manzanita, back from the brink of extinction.
A little white shack with the red roof along Crissy Field holds a lot of history and houses vitally important scientific instruments.