Is flooding increasing around the world? EarthSky talks with Bob Brakenridge, founder of the Dartmouth Flood Observatory, about mapping global flooding in this 8-minute *Clear Voices for Science* podcast.

"Now people don't say 'There are sharks in the water!' and run out of the water. Now people run in the water to see them." says shark expert 'Dr. Hammerhead.' He follows sharks on their superhighways in the sea, starting at the Galapagos islands.

12 o'clock a.m. and 12 o'clock p.m. mean different things to different people across the world. It's better to say noon or midnight.

Astronomer Michael Liu talks about the most lightweight stellar objects found outside our solar system. It's a pair of brown dwarfs, sometimes called 'failed stars' because they lack enough mass to sustain the nuclear reactions that let stars like our sun light up.

A flower with a fragrance is a flower with a mission. Learn more about the perfumes of flowers.

Astronomy enthusiasts can now access sky information - including EarthSky podcasts - on Sky in Google Earth.

Nothing against silver-coated Labradors or super-fast whippets, but I don't want a dog that's designed. Read more about designing the perfect dog.

What will the future will be like? According to Ray Kurzweil, technologies are going to transform everything we do.

"If things work the same in people as in mice, and you had a perfect drug, you might imagine that you could extend life span by 20 or 30 year," said MIT biology professor Lenny Guarente. Hear more about an anti-aging gene that might extend the human life span.

A student from Laos wonders how long humans might live. An MIT biologist responds, and talks about new research that could help extend our lifespan.