​​Scientists Print All-Liquid 3-D Structures

Berkeley Lab scientists have developed a way to print 3-D structures composed entirely of liquids. Using a modified 3-D printer, they injected threads of water into silicone oil — sculpting tubes made of one liquid within another liquid.

They envision their all-liquid material could be used to construct liquid electronics that power flexible, stretchable devices. The scientists also foresee chemically tuning the tubes and flowing molecules through them, leading to new ways to separate molecules or precisely deliver nanoscale building blocks to under-construction compounds.

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​​Prototype Satellite Launched on SpaceX Rocket Will Try to Clean Up Space Junk

On the whole, space is mostly empty, but the space around the Earth is anything but. Earth’s orbit is full of thousands of satellites, pieces of debris, and junk from the thousands of rocket launches over the past few decades. This presents a serious problem for future satellites: Any one of them could be randomly taken out by a flying piece of space junk.

The only way to solve this problem is to clean up space, but that’s easier said than done. Plenty of organizations, including NASA and the Chinese and Japanese space agencies, have developed their own prototype space debris catchers. On Monday, one such debris catcher, named RemoveDEBRIS, was launched into space and will undergo testing over the next few weeks.

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The Last Great Martin Furnace

On March 23rd, 2018, Russia's last large Martin furnace stopped its production. Now it's possible to observe steel production of such a scale only in pictures. That’s why we assigned our photographer to travel there and take pictures of the last steel heating, and now we would like to share the photos with you. Update: now with explanations!