Discover Magazine7 小时
A Compass Works Differently in Space, Varying Widely From Planet to Planet
How does a compass work in space? From the moon to Venus, here’s how a compass would work beyond Earth’s magnetic field.
Ever-Growing USA on MSN5 天
Magnetic North’s Slowdown: What the 2025 Model Reveals
Earth’s magnetic north pole is on the move—and in surprising ways. With the release of the World Magnetic Model 2025, ...