Earth's inner core formed between 1 billion and 1.5 billion years ago, and this freezing heart of the planet powers its protective magnetic field. Continue reading →
The Magellanic Clouds, which can only be seen from the southern hemisphere, are two of our nearest neighbors.
Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than thought.
Scientists have created a new class of computers that can manipulate physical matter. Continue reading →
Self-assembling origami bots may eventually be deployed inside your body. Continue reading →
A new computer model of our sun's magnetic field suggests the shape of our solar system's heliosphere is stranger than we ever thought.
Weddell seals may use Earth's magnetic field to navigate among the holes in the ice it needs to find in order to breathe.
Science finally has an answer for why the Greek letter theta appears in the form of aurorae near the north and south poles.
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