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photos-of-space: “​​140 million miles away from home, NASA’s Mars Curiosity Rover took this shot of its leftover tracks, as it drove across the planet’s sandy dunes. ”

photos-of-space:

​​140 million miles away from home, NASA’s Mars Curiosity Rover took this shot of its leftover tracks, as it drove across the planet’s sandy dunes.

(via o-blivia)

Dec 25, 2018

blunt-science:

Sinkholes like this one in Xuanen, China, form from the natural movement of underground rivers and currents. 

Eventually, a section of the roof will weaken and collapse, forming a portal to the underground passages below. Often, with the addition of sunlight from a collapsed roof, the fertile and moist underground passages become a hotbed for various plants and animals that form a biodiversity that is both largely unlike the species found on the surface, and is also very dependent on the specific composition of these underground spaces. ⠀

Dec 22, 2018

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