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Magnetic Reconnection
NASA’s TRACERS mission, or the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, will fly in low Earth orbit through the polar cusps, funnel-shaped holes in the magnetic field, to study magnetic reconnection and its effects in Earth’s atmosphere.
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Aurora Australis
The aurora australis arcs above a partly cloudy Indian Ocean in this photograph from the International Space Station as it orbited 269 miles above in between Australia and Antarctica on June 12, 2025.
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Earth Information Center
Explore our changing planet
For more than 50 years, NASA satellites have provided data on Earth’s land, water, air, temperature, and climate. NASA’s Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.
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