For observers on Earth, the sun appears as a bright, familiar disk—but what we see is only half the story. Like the moon, one half of the sun is permanently hidden from our direct view: the far side ...

The original version of this story appeared in Quanta Magazine. All the magnets you have ever interacted with, such as the tchotchkes stuck to your refrigerator door, are magnetic for the same reason.

In the beginning, there was no magnetism. Immediately after the Big Bang, the universe contained an awesomely hot cloud of electrically charged protons, electrons, helium and lithium nuclei. Each ...

In the air people breathe, the water on Earth, the stars in the sky and more, atoms are the building blocks that make up the universe. Understanding the structure of the atomic nucleus is crucial for ...

Step into a world so tiny, it defies imagination -- the nanoscale. Picture a single strand of hair, now shrink it a million times. You've arrived. Here, atoms and molecules are the architects of ...

Introduction to Magnetism provides a thorough overview of magnetism and how it relates to electricity. Magnetism is a force of attraction and repulsion that occurs when the molecules in a material ...