Delivered by a rare Ceasarian section, these two cheetah cubs managed to survive and are being raised at the Smithsonian's National Zoo, where they are currently melting hearts. 

Found via Reddit, this DIY bed "levitates" with the help of some magnets. It can hold up about 110 kilograms before the wood is pushed down onto its base. 

SpaceX's Dragon spacecraft finally docked with the ISS - the very first private spacecraft to ever do so. 

Facebook, oddly, released a photo app this week. The app isn't odd, particularly; it's nicely designed, easy to use, quite pretty (especially for the oft-design-challenged Facebook). What's odd is that Facebook recently spent a billion dollars on Instagram - which is basically the same thing, right down to the filters. Buzzfeed FWD found some . . . interesting similarities between the filters of the two apps. 

Stuntman Gary Connery makes the highest non-protected - like, without a parachute - skydive ever, crashing 730 metres into a pile of boxes. He made it to speeds of 130 kilometres per hour three seconds after his leap. He fell for about 30 seconds, flared his wings to slow down to the relatively bearable gliding speed of 80 km/h and falling speed of 25 km/h, then landed on the four metre high makeshift landing strip a kilometre away. 

The London Array is the world's largest wind farm, located offshore. It's expected to be completed sometime later this year, and when finished should have a capacity of 630MW. The entire array covers an area of 230 kilometres squared.

Here's what Earth (right) and Jupiter's moon Europa (left) would look like if all the water was removed from each and shaped into lovely blue spheres. Europa's ocean is two to three times larger than our own, despite its smaller size. 

This hydroponic wheel was actually, according to FastCoDesign, thought up by NASA back in the 1980s as a way to grow plants in space. It was never actually made, for some reason, but designer Libero Rutilo brought it back in this mockup. Seems like it works well in apartments too! 

National Geographic reader James Morgan sent in this shot of Enal, a young Indonesian boy, grabbing onto the tail of his "pet shark," specifically a tawny nurse shark. Enal is a sea nomad, part of a culture that often spend most of their life on the ocean. 

Who knew the Mars Rover Opportunity was such an accomplished photographer? Here it snaps a shot at the edge of the huge Endeavour Crater on Mars.