Adam Cole

Love is complicated, scientifically speaking. There's no single, specific "love chemical" that surges through our bodies when we see our beloved, and we can't point to a specific corner of the brain where love resides.

What if you could go back in time and follow your food from the farm to your plate? What if you could see each step of your meal's journey — every ingredient that went into its creation, and every footprint it left behind?

If you just celebrated Easter, you might have some stale marshmallow Peeps lying around the house. And if you want to avoid eating those Peeps, they are the perfect material for a science experiment you can do in your own kitchen.

With the help of a ruler and a microwave, you can use leftover Peeps to calculate one of the constants of the universe — the speed of light.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

ARI SHAPIRO, HOST:

NPR's YouTube channel, Skunk Bear, answers your science questions. This week, we picked one in honor of David Bowie.

This winter brings the latest installment of the Star Wars franchise, full of familiar costumes, familiar villains, and the familiar "pew pew pew" of space guns. But you can skip the movie theatre and still hear those iconic blaster sounds if you visit a frozen lake.

Author Isaac Asimov once wrote, "The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but, 'That's funny ... ' "

Good scientists search for the significance of surprises, coincidences and mistakes. With a little curiosity and perseverance, they can turn unexpected incidents into new insights.

Editor's note: It's National Popcorn Day! We're celebrating by bringing back this tale, first published in 2014, about the history of the beloved snack.

The Nobel Prize in medicine was awarded Monday to three scientists for their work on parasitic diseases.

William C. Campbell and Satoshi Omura were recognized for discovering a compound that effectively kills roundworm parasites. A Chinese scientist, Dr. Youyou Tu, won for her work in isolating a powerful drug in the 1970s to fight malaria.

Hundreds of you sent in questions for Skunk Bear's live conversation with three astronauts and NASA's chief scientist on Tuesday. Thanks! The most common question was: "What happens when you get your period in space?"

I didn't end up asking them this question because:

a) The question itself has a lot of historical baggage;
b) The answer is pretty boring.

But since people were genuinely curious, I decided to answer it here.

In the history of life on Earth, evolutionary forces have pushed some species to become incredibly large. After most dinosaurs died off 66 million years ago, some mammals and marsupials grew bigger and bigger, taking the dinos' place.

Make Lava, Not War

Jun 25, 2015

The Man v. Horse Marathon starts out like a typical cross-country race. Hundreds of runners stream past the starting line, through the town of Llanwrtyd Wells and then up into the Welsh hills.

But 15 minutes later, a second set of competitors takes off. Fifty horses and their riders chase the runners up and down ridges, across streams, and past hundreds of bewildered sheep.

NPR has this tribute to the Hubble Space Telescope — a parody of Iggy Azalea's "Trouble."

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

ROBERT SIEGEL, HOST:

In the week after Easter, we had a lot of old Peeps lying around. No one seemed that interested in eating them, so we used them to measure the speed of light.

It's March, and that means college basketball fans are gearing up for the NCAA tournament. But there's another tournament taking place this month — and animals aren't the mascots, they're the competitors.

"Mammal March Madness" is organized by a team of evolutionary biologists. They choose 65 animal competitors and then imagine the outcome of a series of simulated interspecies battles. Who would win if a kangaroo took on a warthog? Or if an orca fought a polar bear?

George Dante fell in love with taxidermy as a young child. His parents took him to the American Museum of Natural History in New York City, and he couldn't tear his eyes away from the dioramas in the Hall of African Mammals.

Lonesome George was a celebrity tortoise. Millions of humans made the pilgrimage to see him while he lived, and his death was international news.

Why?

Decorative gourd season has arrived, and we decided to celebrate by investigating the science and history of pumpkins.

Do you know what happens when you feed ostriches pumpkin seeds? Or when the first pumpkin beer was brewed? Or what to call a zucchini-pumpkin hybrid? Watch our new video to find out.