29:07
Can Mass Transit Solve City Sprawl?
L.A. commuters spend 60 hours a year stuck in traffic. But is mass transit a viable alternative?
7:07
These Smartphone Apps Track Every Step of Your Day
“Quantified self” apps count your steps, measure your sleep, and collect a bevy of other details.
27:42
Science Fairs 2.0
A report card on the state of science fairs today, and a look into the future.
13:06
Birding the Fall Migration
Birding tips on how to get the most out of the fall bird migration.
5:31
A Chronicle of a Whale’s Life, Captured in Earwax
Researchers say earwax can provide data about pesticide exposures, hormone levels, and even stress levels of the endangered blue whale.
5:35
World’s Largest Volcano Discovered on Pacific Seafloor
A 145-million-year-old volcano covers an area the size of New Mexico.
38:12
Chemistry Research Roundup
A look at highlights from this week’s American Chemical Society conference.
2:41
Stephen Hawking Looks Back
Stephen Hawking says that, were he to start from scratch, he wouldn’t focus on physics.
11:49
Are We There Yet? Voyager 1 Finally Answers ‘Yes’
Scientists announced this week that Voyager has finally reached interstellar space.
17:07
U.S. Cities Quench Growing Thirst with Saltwater
Desalination is growing in popularity, but is it sustainable enough to solve our water problems?