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Cosmic Curiosities on Instagram: "In 1543, Nicolaus Copernicus quietly challenged the most comfortable idea humanity had ever held: that Earth was still, central, and unmoving. Centuries later, we now know the truth is far stranger. Earth is anything but quiet. It spins at over 1,600 km per hour, races around the Sun at 107,000 km per hour, and carries us through a galaxy already moving through an expanding universe. Beneath our feet, a molten core roars with heat, generating the magnetic field that shields life itself. Our seasons are born from a simple tilt, not distance. That slight lean gives us summers and winters, growth and decay. Our planet sits at a rare distance where liquid water can exist, where oceans remain stable, and where eclipses are possible at all — because the Moon and Sun appear almost perfectly matched in the sky. A cosmic coincidence so precise it turns chance into wonder. That's what Prof. Brian Cox reflects on in today's video. He reminds us that Earth isn't a |  |
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