Science

Why don't gold and platinum sink to the Earth's core?

All planetary models have suggested that, due to their properties, gold and other precious metals should sink to the Earth's core, however they are found in the Earth's crust. There is already a possible answer to this mystery.

How does space weather affect birds?

Birds rely heavily on the Earth's magnetic field when travelling or migrating. Do solar flares and other space weather events disrupt their ability to do this?

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