magnetic fields
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In Ancient Rocks, Scientists See a Climate Cycle Working Across Deep Time
A gradual shift in Earth’s orbit that repeats every 405,000 years plays a role in natural climate swings.
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When North Itself Wanders
I love thinking about why my compass points north. The deep, molten-metal motions, rising And falling … gargantuan currents of iron Conceiving vast magnetic fields, revealed In my hand, by a tiny, quivering red needle.
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Solar Heartbeat
Upon our little spinning rock, Cosmic rays and debris knock. Through great fields and waves we race, Not empty, our broad path through space!
The first Earth Day in 1970 ignited a movement to stop polluting our planet. This Earth Month, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
