Eco-friendly 3D printed supercar | Reuters

This has potential in spacecraft manufacturing…

According to Czinger, 3D printing transforms everything by changing the way the structural components of cars are fabricated. Currently cars are pieced together on long assembly lines inside large factories that use massive amounts of energy. Even the most fuel-efficient car has a large carbon footprint before ever leaving the plant.Czinger and his team’s approach was to take the large plant out of the equation. To accomplish this they printed the modular pieces that are used to connect carbon rods that make up the Blade’s chassis.”The 3D printed chassis is only 102 pounds and has the same strength and safety protection as a frame made out of steel,” said Brad Balzer, the lead designer on the project.By using carbon fiber instead of steel or aluminum for the body, the entire vehicle only weighs 1400 pounds (635kg), giving it twice the weight to horsepower ratio of a Bugatti Veyron.

Source: Eco-friendly 3D printed supercar | Reuters

An Aurorae Spotted On Star 18.5 Years Away

Magnetospherically driven optical and radio aurorae at the end of the stellar main sequence : Nature
Aurorae are detected from all the magnetized planets in our Solar
System, including Earth. They are powered by magnetospheric
current systems that lead to the precipitation of energetic electrons
into the high-latitude regions of the upper atmosphere. In the case
of the gas-giant planets, these aurorae include highly polarized
radio emission at kilohertz and megahertz frequencies produced
by the precipitating electrons, as well as continuum and line emis-
sion in the infrared, optical, ultraviolet and X-ray parts of the
spectrum, associated with the collisional excitation and heating
of the hydrogen-dominated atmosphere. Here we report sim-
ultaneous radio and optical spectroscopic observations of an object
at the end of the stellar main sequence, located right at the bound-
ary between stars and brown dwarfs, from which we have detected
radio and optical auroral emissions both powered by magneto-
spheric currents.

Source: Magnetospherically driven optical and radio aurorae at the end of the stellar main sequence : Nature