Auroras may be visible from Alaska to New York as incoming coronal mass ejections and high-speed solar winds could trigger geomagnetic storms tonight.
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Solar system comets are often at their brightest as they draw close to the sun
Jupiter currently shines as a brilliant silvery “star” in the constellation Gemini the Twins, low in the east-northeast sky as dusk slowly fades. You really should catch the show.
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The Hubble Telescope appears as a tiny silhouette during a perfectly timed solar transit captured from Puerto Rico.
From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike anything I’d seen before.
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A solar conjunction occurs as Venus’ orbit carries it into alignment with the sun and Earth.
Regulus is the brightest star in the zodiacal constellation Leo.
January’s full moon is often known as the ‘Wolf Moon’.
Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west to east across the globe. Here’s everything you need to know to plan an exquisite triple-header.
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Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3.