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Size Matters--for Heart Monitors

The same technological advances that shrank telephones miniaturized heart monitors, with far-reaching implications for heart health.

February 12, 2016 — Eliene Augenbraun and David Sherman MD

Richard Garriott's Cabinet of the Universe, Part 2: Earth Forms

In this episode of Richard Garriott's miniseries, he shows us how Earth formed, how remnants of that formation still wander the solar system and how our planet came to be covered by oceans.Next week: Life on Earth Begins

January 5, 2016 — Eliene Augenbraun and Lee Billings

Mercury's Rare Road Trip

Thirteen times a century, on average, Mercury passes directly between Earth and the sun, creating what astronomers call a transit. It just happened again; this video, created with images from the orbiting Solar Dynamics Observatory shows the tiny planet’s silhouette as it makes its seven-hour journey across the solar disk.

May 10, 2016 — Lydia Chain

Designer Probiotics for Cancer

New research on mice demonstrates a way to use designer bacteria as a non-invasive test for cancer.

October 2, 2015 — Cynthia Graber and Eliene Augenbraun

Why the U.S. Crushed a Ton of Ivory

The elephant in the room—actually, Times Square: a ton of poached ivory that was mashed in some sort of souped-up wood chipper.

June 24, 2015 — Sabrina Imbler, Benjamin Meyers and Eliene Augenbraun

Do Lobsters Need Earplugs?

Human-caused ocean noises cause clams to clam up and lobsters to scurry for cover, which could wreak havoc with nutrient cycling.

April 1, 2016 — Benjamin Meyers

Dragonflies Outmigrate Butterflies

Globe skimmer dragonflies migrate more than 15,000 kilometers, breeding with the locals as they travel and creating an interrelated global population. A dragonfly from Japan may have more in common with Guyanese dragonflies, genetically speaking, than its own Japanese cousins.

May 6, 2016 — Leila Falls and Christopher Intagliata

A Topology Joke to Celebrate National Doughnut Day

Ian Agol is a University of California mathematician who was awarded the 2016 Breakthrough Prize for his work on 3-D topology. He shares a special joke about how topologists view breakfast.Editor's Note (6/3/16): In honor of National Doughnut Day, Scientific American has updated and republished the following video, originally published in November 2015.

November 12, 2015 — Eliene Augenbraun, Benjamin Meyers and James Drew