Every eleven years, the sun's magnetic field flips. Sunspots—dark, cooler regions on the sun's surface that mark intense ...
Cosmic rays are one of the greatest challenges for space travel and pose a considerable risk to humans and materials. For the ...
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A mass stellar migration billions of years ago may have helped life get started on Earth
Our sun and a host of "solar twins" may have migrated away from the core of the Milky Way galaxy together long ago, potentially making the solar system more hospitable to life.
A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...
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