Science & Nature

Separating Twins

Image of Separating Twins
NOVA

Thu Dec. 22, 2011

Follow the amazing story of Trishna and Krishna, girls born joined at the head, as surgeons prepare to separate them. Continue


Scientists in Kenya Try to Fend Off Disease Threatening World's Wheat Crop

PBS NewsHour

Thu Dec. 29, 2011

Scientists in Kenya's Rift Valley are taking part in a complicated and protracted global fight against Ug99, a fungal disease called wheat rust that could destroy 80 percent of all known wheat varieties. Special correspondent Fred de Sam Lazaro reports as part of the Under-Told Stories Project. Continue


How 2011 Became a Year of Record-Breaking Weather

Image of How 2011 Became a Year of Record-Breaking Weather
PBS NewsHour

Wed Dec. 28, 2011

From snowstorms to floods and tornadoes, severe weather wreaked havoc across the United States this year, with 2011 marking far more extreme weather events than a typical year. Hari Sreenivasan discusses the science behind this year of extreme weather with NOAA's Kathryn Sullivan and Weather Underground's Jeff Masters. Continue


The Daily Frame

Image of The Daily Frame
PBS NewsHour

Wed Dec. 28, 2011

A visitor takes a picture on an iPad of a statue of late Apple co-founder Steve Jobs at Graphisoft Park in Budapest, Hungary. The six-and-a-half foot bronze statue by Erno Toth depicts Jobs with his trademark turtleneck shirt, jeans, sneakers and round glasses. Continue


The Science of Snowflakes, and Why No Two Are Alike

Image of The Science of Snowflakes, and Why No Two Are Alike
PBS NewsHour

Thu Dec. 22, 2011

Peer through a magnifying glass at a snowflake, and you'll see an ice creation more elaborate than anything Martha Stewart could cut from folded paper. Continue


New EPA Rules Target Power Plants' Toxic Mercury Emissions

Play Video Image of New EPA Rules Target Power Plants' Toxic Mercury Emissions
PBS NewsHour

Thu Dec. 22, 2011

The Environmental Protection Agency unveiled new standards Wednesday to curb mercury emissions from coal- and oil-fueled power plants around the country. Gwen Ifill discusses the announcement with the Electric Reliability Coordinating Council's Scott Segal and the Natural Resources Defense Council's John Walke. Continue


The Science of Snow Crystals

Image of The Science of Snow Crystals
PBS NewsHour

Wed Dec. 21, 2011

It's true: no two snowflakes are alike. But they come in more shapes than you might think. Check out some samples in this slideshow. Continue


Kangaroo Mob

Image of Kangaroo Mob
Nature

Wed Dec. 21, 2011

Following the stories of several urban kangaroos, Kangaroo Mob reveals how these metropolitan marsupials manage to survive the city, and documents the ongoing debate on how best to manage them. Continue


A New Vitality

Play Video Image of A New Vitality
Nature

Wed Dec. 21, 2011

Trips to the city become less frequent when there's an abundance of grass in the hills. Continue


Flaws in Death Investigation Leave Elderly Vulnerable

Image of Flaws in Death Investigation Leave Elderly Vulnerable
FRONTLINE

Wed Dec. 21, 2011

An investigation by ProPublica and FRONTLINE finds the system to examine unusual fatalities often fails seniors, leaving them vulnerable to neglect, abuse and even murder. Continue


Hunting the Hidden Dimension

Play Video Image of Hunting the Hidden Dimension
NOVA

Thu Dec. 22, 2011

Mysteriously beautiful fractals are shaking up the world of mathematics and deepening our understanding of nature. Continue


How 2011 Became a 'Mind-Boggling' Year of Extreme Weather

Play Video Image of How 2011 Became a 'Mind-Boggling' Year of Extreme Weather
PBS NewsHour

Thu Dec. 29, 2011

From snowstorms to floods and tornadoes, severe weather wreaked havoc across the United States this year, with 2011 marking far more extreme weather events than a typical year. Hari Sreenivasan discusses the science behind this year of extreme weather with NOAA's Kathryn Sullivan and Weather Underground's Jeff Masters. Continue


Testing Hybrids and Tossing Sandals in the Fight Against...

Image of Testing Hybrids and Tossing Sandals in the Fight Against...
PBS NewsHour

Wed Dec. 28, 2011

Scientists say they are making promising strides in their race against Ug99, a stem rust disease that, left unchecked, could wipe out 80 percent of the world's wheat crop. But this is a science of watching plants grow. The race is a marathon and the number of farmers forced to be in it will likely drop in the years ahead. Continue


U.S. Asks Journals to Keep Bird Flu Studies Secret

Image of U.S. Asks Journals to Keep Bird Flu Studies Secret
PBS NewsHour

Thu Dec. 22, 2011

How much research about the deadly bird flu virus should be available to the public? Ray Suarez discusses the question that many in the science, bioterrorism and national security fields are considering with Dr. Anthony Fauci of the National Institute of Allergy and Infectious Diseases and Bruce Alberts of the journal Science. Continue


Mystery of a Masterpiece

Image of Mystery of a Masterpiece
NOVA

Thu Dec. 22, 2011

Art experts investigate whether a portrait sold for about $20,000 in 2008 is actually a lost Leonardo worth millions. Continue


EPA Targets Power Plants' Toxic Mercury Emissions

Image of EPA Targets Power Plants' Toxic Mercury Emissions
PBS NewsHour

Wed Dec. 21, 2011

The Environmental Protection Agency unveiled new standards Wednesday to curb mercury emissions from coal- and oil-fueled power plants around the country. Gwen Ifill discusses the announcement with the Electric Reliability Coordinating Council's Scott Segal and the Natural Resources Defense Council's John Walke. Continue


December 23, 2011

Play Video Image of December 23, 2011
To The Contrary

Wed Dec. 21, 2011

We take a look at the big stories of 2011 that involved women and diverse communities. Then women as peace makers and peace keepers. Continue


The Head Roo

Play Video Image of The Head Roo
Nature

Wed Dec. 21, 2011

Meet Blackspot, the dominant male of a local Canberra kangaroo mob. Continue


Metropolitan Marsupials

Play Video Image of Metropolitan Marsupials
Nature

Wed Dec. 21, 2011

There are thousands of kangaroos living in the hills around Canberra. And as night falls, they start moving into the suburbs. Continue


News Wrap: Great Plains Snowstorm Kills at Least 6

Image of News Wrap: Great Plains Snowstorm Kills at Least 6
PBS NewsHour

Tue Dec. 20, 2011

In other news Tuesday, a snowstorm howled across the Great Plains for a second day, killing at least six people. High winds and heavy snow closed major highways in five states. Also, Egyptian troops and riot police raided Cairo's Tahrir Square in a new bid to evict people protesting military control. Continue


Providing Support for pbs.org Learn More
Related Content from AARP