Earth is the only terrestrial or rocky planet in the inner plants with a known magnetic field despite all of them having molten interiors.
In 1974, a spacecraft that flew past Mercury was able to measure a magnetic field, but it was extremely weak at only about 1% of the magnetic field on here on Earth.
The gas giants Jupiter, Saturn, Uranus and Neptune all have magnetic fields that are much stronger than Earth's magnetic field.
From secret worlds to mystical doors, subterranean land appeared in ancient mythology, and legends in all kinds of flavours. But right under our feet lies an incredible force of nature capable of keeping us alive as well as posing existential threats
Take a wander through human imagination, creativity & the designed world around us
Explore Planet Earth’s diverse environments & ecosystems, from rainforests to cities
Look back on key events, trends & people to shed new light on the world we live in today
Focus your attention inwards to one of the most complex systems of all: the human body
Immerse yourself in the world of words, written & spoken, from mythology to the media
Ask the knotty questions about knowledge, reality, existence, morality & what we believe
Delve into what drives us as humans, from communication & memory to thought & emotion
Journey through the natural world and the experiments & observations that illuminate it
Examine the ties that bind us as communities and the customs & structures we create
Investigate the most exciting applications of the cutting edge of research & thinking