NASA’s Solar Dynamics Observatory (SDO) has detected a colossal coronal hole on the Sun’s surface, stretching an estimated 500,000 miles across—a size equivalent to 62 Earths lined up side by side.
A massive coronal hole has opened on the sun, sending high-speed solar wind toward Earth and increasing aurora activity.
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On Monday, a White House memo ordered a freeze on all federal assistance, so agencies could review compliance with President ...