Find out how a walk in the wood with his canine companion led Swiss engineer Georges de Mestral to invent the multi-purpose fastener Velcro.

Meet Annie Jump Cannon, whose stellar classification scheme is still used today.

Test your science knowledge in this episode’s Matter of Fact.

Brother Guy Consolmagno — 2014 Carl Sagan prize winner and the Vatican’s official astronomer — talks about where science and religion meet.

Two top physicists from the Department of Energy join us to explain how they’ve taken particle accelerator technology — which usually takes a facility that is miles in length — and fit it into a room.

We sit down with Josh Kampel, President of Techonomy, to find out what a growing economy focused on technology means for American and global businesses and how it is changing our daily lives.

How well do you know your oral history? The toothbrush may be older than you think.

Meet Grace Hopper, a computer programmer for the United States Navy who helped develop the first computer code compiler.

An exhibit at the American Museum of Natural History in New York City makes the argument that by better understanding natural disasters, we can better protect ourselves against them.

Soon computers will be able to design themselves. Richard Waters of the Financial Times joins host Hari Sreenivasan to discuss the ramifications of truly intelligent computers.

The "world's most beautiful woman" was much more than that. Find out how Hedy Lamarr was responsible for a groundbreaking radio system.

Dissolved phosphorous - believed to be caused by agricultural run-off - is leading to dangerous algal blooms which are in turn threatening the water quality of Lake Erie. Researchers and farmers alike are developing novel solutions to prevent this dangerous run-off from polluting the water system.

Scientists are actively searching for "Earth twins" -- Earth-like planets that might support life. This year, they've discovered two of the most promising planets yet.

Car racing isn't known for being environmentally friendly. But drift car racer Matt Coffman and his racing team are looking to change that. Their car runs on ethanol fuel produced by a dried fruit company.

Worried about privacy online? New York Times reporter Natasha Singer joins us to explain "data brokers" - companies who sell consumer data - and the privacy and transparency issues this practice raises.

Expand your vocabulary with this fancy name for a common punctuation.

Hari Sreenivasan sits down with Dustin Growick, the “Dinosaur Whisperer,” to hear how he is getting people excited about science.   

Is there life beyond earth? We sit down with SETI Institutes’ Dr. Seth Shostak who believes we have finally arrived at a point where the discovery of extraterrestrial life is not only possible, but also likely within a matter of decades.

We take a look at a company that has developed an innovative, sustainable solution to fertilization, farming and toxic algae blooms.

The Earth's extinction rate is 1000 times faster than its historic average. Are humans to blame?