The $99 Mio Link uses its optical sensor to track your heart rate.
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Pluto, the focus of NASA's New Horizons spacecraft, has a softer side in the form of a distinctive heart-shaped feature on its surface.
In a just-held briefing, NASA says that Pluto's "heart" will be named for the dwarf planet's original discoverer, a dark spot on moon Charon is called "Mordor," and Pluto is a relative newborn.
The PBS and BBC One series "Big Blue Live" offers a close look at a blue whale's massive ticker. Just be thankful YouTube doesn't have a virtual smell feature...for now.
The Cassini spacecraft says its goodbyes to icy Dione in stunning style with some of the best images of the moon ever taken.
The company's latest activity tracker aims to outdo the original by monitoring your heart rate and stress level.
Women are more likely to pick up on romantic cues when they feel sated, a new study says. It probably doesn't hurt if you also pick up the check.
Tesla issues an over-the-air update after security researchers hack the car via its entertainment system.
Yub nub! Let Internet star Munchkin brighten your day as she dresses in an Ewok costume and waddles through the grass with her walking stick to a "Star Wars" soundtrack.
Watch Stephen Colbert try to coax some love for Pluto out of Neil deGrasse Tyson while they eat Klondike bars and discuss drafting in Nascar.