From CNN 10.

Today on CNN10: The window to apply for Financial Aid programs opens early for a select beta group, we’ve got the details. Plus, we track massive wildfires sweeping across Europe, before discussing the ambitious talks of a transcontinental railroad that would connect both U.S. coasts. Then, we meet Wavy Dave — the robotic fiddler crab that helps scientists study crustacean courtship. All this and more on CNN10!