Photographer Radu Zaciu creates surreal still life images by placing light bulbs inside fruits and vegetables.
As spring kicks in, our planet pics take a decidedly green hue, from the northern lights, to a verdant Alaskan park and a river that turns color in a flash.
The Lunar Reconnaissance Orbiter provides a view of Earth from the dark side of the moon and a South American country names half of its area a conservation corridor. Plus: Two hikers brave frozen Lake Erie.
A massive mitten is spotted in the Arctic, a winter storm covers much of the United States and a stunning ice cave in Alaska is captured just before it disappeared.
Check out the most common cloud types found in the atmosphere, according to the Center for Science Education.
Saharan dust energizes the Amazon, dozens of new sinkholes are found in Siberia, and an ancient tree frames a Hobbit-like building.
Photographer Beth Moon spent 14 years shooting to create this photo collection of ancient trees.
Take a tour of a mostly frozen Niagara Falls by drone, all from the comfort of your warm living room.
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