In honor of the spookiest time of year, let's take a look at the spookiest-named things in the cosmos.

Nature can be pretty noisy, but there's some stuff that's just quiet all the time - right? Well, thanks to advances in audio equipment, researchers are finding out that everything from plants to bacteria have a lot more to say that we...

As Squeaks continues to prep for his big trip with Jessi, Mr. Brown helps him learn all about how the wind outside the fort will also affect how long his airplane ride with Jessi takes!

Architecture student Magnus Larsson details his bold plan to transform the harsh Sahara desert using bacteria and a surprising construction material: the sand itself.

Reed Kroloff gives us a new lens for judging new architecture: is it modern, or is it romantic? Look for glorious images from two leading practices -- and a blistering critique of the 9/11 planning process.

The Red Planet was once more like Earth, with a thicker atmosphere and liquid water. Now, scientists are looking for clues to its past in the planet’s ancient fossil dunes, barchan dunes, and ghost dunes.

Discover the intense encounter between a Velociraptor and a Protoceratops, preserved in fossil form. Learn how the Velociraptor's attack and the Protoceratops' powerful defense led to a dramatic, fatal struggle, unearthed millions of...

Dr. Forrester teaches the student about the following terms and physical features: sea level, elevation, bayou, plateau, levee, hurricane, Mississippi embayment, barrier islands, plains, wetlands, Mammoth Cave, and Jockey's Ridge.

John Gruener and Steve Hoffman discuss in-situ resource utilization (ISRU), the ability to find and use natural resources beyond Earth. HWHAP Episode 55.

Gravity and erosion are major factors in changing the shape of the surface of Earth. The different types of erosion, and the major types of mass movements caused by gravity are discussed in this video. Other terminology includes:...