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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.

Here are some of the best adult-only cruises for 2025. Ambassador is adult-only for most the year apart from some multi-generational sailings during the school holidays. You won’t have to worry about ...

Astronomers await a rare cosmic event as T Coronae Borealis, the Blaze Star, prepares to erupt in a thermonuclear explosion, making it briefly visible in the night sky.

NASA astronaut Don Pettit got this gorgeous video of the Northern Lights from an unusual vantage point -- skimming above the ...