You've probably seen or experienced most of these common science phenomena before, but you may not have thought about why ...

"If you look at the distribution of the galaxy clusters in the sky in a spherical ... 826 million light-years, you immediately notice a huge structure that stretches from high northern latitudes ...

Unlike ordinary lightning, ball lightning appears as glowing, spherical orbs ... Aurora Borealis, or the Northern Lights, is a celestial show that paints the night sky in vibrant hues of green ...

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Anselmi, CC BY-SA 3.0 IGO “If you look at the distribution of the galaxy clusters in the sky in a spherical shell with a distance of 416 to 826 million light-years, you immediately notice a huge ...

Dowtown Reykjavik with the aurora borealis gracing the sky above. Reykjavik City hall is the building on the far left and to the right of city hall is Althingi. Aurora Borealis (Northern Lights ...

You might be surprised at what's dancing in the sky. There are several sites that track northern lights. NOAA's Space Weather Prediction website shares information about the strength of solar ...

extending into the continental U.S. Northern lights or aurora borealis illuminate the night sky over a camper's tent north of San ... More Francisco in Middletown, California on May 11 ...

The night sky in Wisconsin glows with the Northern Lights. Ross Harried/NurPhoto via Getty Images The best times to view the northern lights are in the hours just before and after midnight ...