Today's Takeaways: Life on Mars, The Science Behind Fireworks, and The Life & Legacy of Roger Ebert
![](https://media.wnyc.org/i/800/0/h/85/1/shutterstock_123783175.jpg)
Dubai downtown and Burj Khalifa on October 11, 2012.
( SurangaSL / Shutterstock )
( SurangaSL / Shutterstock )