The prevailing model for planetary accretion assumes that the solar system's planets formed in an extremely hot, two-dimensional disk of gas and dust, post-dating the sun. Scientists now propose a ...

Most hobby 3D printers are based on FDM, extruding a single-color noodle of melted plastic to build up an object. Powder-based inkjet 3D printing allows you to print detailed, full-color models from a ...

When the people of Earth set up bases on the moon, you can imagine that 3D printing will be a key enabling technology. Of course, you could ship plastic or other filament at great cost. But what if ...