Discover which Celebrity Cruises ship is best for Alaska. Compare Solstice, Eclipse, and Millennium for itineraries, glacier viewing, and onboard amenities.

Have you been wondering why the northern lights are suddenly all over social media — and in the news? Noticed an unusually ...

After an X-class solar flare erupted on Feb. 1, a coronal mass ejection reached Earth sooner than expected, prompting upgraded aurora forecasts for Wednesday night ...

Earth's tilt causes extreme light and dark periods near the poles. Places like Svalbard and Tromsø in Norway, and Utqiaġvik, ...

A Knight of the Seven Kingdoms episode 4 continues the show's switch in tone as season 1 races to the finale after that big reveal. Here's the exact time you can watch the next episode in its special ...

NOAA warns of likely G1-class geomagnetic storms on Thursday, Feb. 5, through Friday, Feb. 6, as a coronal mass ejection from ...

Solar activity remains elevated this week, shaped largely by one persistent sunspot region and the steady stream of solar ...

We could be in for a Northern Light show of epic proportions. A barrage of intense flares erupted from the Sun earlier this ...

Valentine's Day, Feb. 14, is a holiday dedicated to sweethearts and love. It invites grand gestures, chocolate hearts, and ...

Elevated geomagnetic activity could allow the northern lights to be seen farther south than usual tonight, according to NOAA.

The huge Lago Llanquihue is part of the panorama, as is the emerald green Lago Todos Los Santos – and, in good weather, the ...