Dec 16, 2025
The Earth has a giant invisible tail — called the magnetotail — that stretches at least two million kilometres into space on the planet’s dark side.
While comets and even Mercury show visible glowing tails, Earth’s version is shaped by its magnetic field and the constant push of solar wind.
This magnetotail carries trapped plasma far into space, forming a teardrop-like extension behind our planet. Researchers say its exact length may reach up to 1,000 Earth radii, making it one of Earth’s most astonishing hidden features.
The discovery highlights how dynamic and powerful our planet’s magnetic shield truly is.
