NORFOLK, Va. — Spongebob, Mickey Mouse and of course Snoopy. They're all staples of the Macy's Thanksgiving Day Parade! This annual tradition mixes art, music, and science for millions of viewers.

Ah, the stately hot air balloon. Not really useful for all that much except for having a grand old time floating around the skies, it's still a marvel of simple physics. Fill a giant balloon with air.

Although scuba divers may appear to be "as free as a fish," they're actually loaded down with quite a bit of gear. The Avelo System is designed to help in that regard, as it moves the functionality of ...

What's more, because the buoyancy of even "neutrally" buoyant ROVs and AUVs changes at different depths, or in fresh versus salt water, the system can be set to hold the vehicle at any given depth.

Explaining how a boat like La Salle's La Belle sinks is not all that difficult: The space within the boat fills up with water, either through the hull or over the boat's sides, causing the boat to ...

Virtually nothing has been known about leatherback turtle diving strategies, but now scientists have discovered that leatherbacks regulate their buoyancy by varying the amount of air they inhale ...