Subsonic Boom

Researchers say they now understand the mysterious boom that can emanate for miles from sand dunesby Cheryl Carlin

Around the Web

Preview thumbnail for Astronomers Create First Realistic Virtual Universe

Astronomers Create First Realistic Virtual Universe (02:35)

Preview thumbnail for Rare Oarfish Sighting

Rare Oarfish Sighting (02:02)

Preview thumbnail for Google Street View Angkor

Google Street View Angkor (01:25)

Preview thumbnail for How Scientists Are Tagging Reindeer to Track Climate Change

How Scientists Are Tagging Reindeer to Track Climate Change (01:43)

Preview thumbnail for Behind the Scenes at the United States Patent and Trademark Office

Behind the Scenes at the United States Patent and Trademark Office (03:48)

Preview thumbnail for How to Train a Cat to Star in a Television Commercial

How to Train a Cat to Star in a Television Commercial (04:15)

Preview thumbnail for What Most Impressed Harry Belafonte About the March on Washington?

What Most Impressed Harry Belafonte About the March on Washington? (03:17)

Preview thumbnail for The History of the Presidential Seal

The History of the Presidential Seal (02:24)

Preview thumbnail for How to Cook in a Space Kitchen

How to Cook in a Space Kitchen (02:27)

Preview thumbnail for Growing Coffee in Brazil's Countryside

Growing Coffee in Brazil's Countryside (10:01)

Preview thumbnail for Wrongfully Admitted to Sunbury Asylum

Wrongfully Admitted to Sunbury Asylum (10:00)