What Are the Northern Lights?

Marvel at the mesmerizing northern lights by learning the history of the natural light show and the science behind how the aurora borealis works!

It takes three things for the northern lights to appear in the sky: a stream of charged particles, a magnetic field, and an atmosphere of certain gases. For much of history, however, this scientific recipe was unknown. The northern lights were thought to be something magical or supernatural: It was once believed that the lights were dragons fighting across the night sky. It wasn't until 1230 that people began to think that the aurora borealis could be created by a natural and remarkable phenomenon. This led to hundreds of years of different scientists carefully studying the lights through dangerous expeditions and magnetic experiments. In 1908, a scientist named Kristian Birkeland finally discovered the cause of the northern lights, and his theory is the one we still believe today. Learn all about the fascinating history of the northern lights in this book for young readers.

Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.

In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.

The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.

Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:

Omnibus

• Large, hardcover collections
• Usually contain complete runs or extensive story arcs
• Typically 800-1000+ pages
• Higher price point, often €100-€150

Oversized Hardcover (OHC)

• Similar dimensions to omnibus, but thinner
• Collect shorter runs or story arcs
• Usually 300-600 pages
• Priced between €30-€50

Hardcover (HC)

• Standard-sized hardcover books
• Collect 6-12 issues typically
• Similar dimensions to single issues, but with a hard cover
• Priced around €25-€35

Trade Paperback (TP)

• Softcover collections
• Standard comic book size
• Usually collect 4-6 issues
• Most affordable option, typically €15-€25

Other Formats

• Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
• Compendiums: Massive paperback collections
• Graphic Novels (OGN/GN): Original stories not previously released as single issues

The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs