Crowd-sourced timelapse images capture Vegas strip, Vatican

Clip: 5/21/2015 | 1m 9s | Crowd-sourced timelapse images capture changes on the Vegas strip and the Vatican (1m 9s)

Fishermen and farmers fight over water in California

Clip: 5/21/2015 | 7m 49s | Fishermen and farmers fight over water in California (7m 49s)

How to hook young people on math and science? Robots!

Clip: 5/21/2015 | 4m 28s | A robotics program aims to inspire young people to take interest in math and science. (4m 28s)

Inside the crusade against Colorado’s marijuana laws

Clip: 5/21/2015 | 9m 7s | After border states filed a lawsuit against Colorado's pot laws, the state answered back. (9m 7s)

Meet China’s ‘left behind’ children

Clip: 5/21/2015 | 3m 45s | China’s ‘left behind’ children will once again join their parents in the U.S. (3m 45s)

Obama’s trade bill clears Senate, but hurdles remain

Clip: 5/21/2015 | 4m 43s | Obama’s trade bill narrowly clears Senate, but then hurdles remain (4m 43s)

Photographers chase Yosemite’s rare moonlight rainbows

Clip: 5/21/2015 | 4m 46s | Photographers chase Yosemite’s rare moonlight rainbows (4m 46s)

Ray Rice’s charges were dropped. How unusual is that?

Clip: 5/21/2015 | 5m 54s | Ray Rice’s assault charges were dropped. How unusual is that? (5m 54s)

What can the U.S. do to stop the Islamic State?

Clip: 5/21/2015 | 7m 33s | What can the U.S. do to stop the Islamic State? (7m 33s)