NASA's Solar Dynamics Observatory captured a huge filament on the unhappy face of our Sun on February 10th. The scary fissure, which looks like a grimace on the surface of the star, is actually an enormous swatch of colder material hovering in the sun's atmosphere.
Scientists at the University of California, Santa Cruz, have taken the first image ever (on the left) of the Cosmic Web that binds the Universe together. I use capitals because if there's a Cosmic Web that connects all galaxies through the Universe, it should be capitalized.
We've been 3D printing in metal, gold, and even sugar for years now—so it seems only natural that we'd also be able to print in glow-in-the-dark plastic. This week, MakerBot announced a limited-edition run of PLA filament that glows in the dark, just in time for Halloween.
This zigzagging, orange-ish ribbon of dust and gas is one of the closest star-forming regions to Earth, just 450 light-years away. And yet in visible light, this looks like just a dark patch of nothing in empty space.
We usually think of black holes as cosmic destroyers, heartlessly devouring anything — even a star — that enters their enormous gravitational pull. But there might be another, more helpful side to supermassive black holes that we're only just discovering.
Large groups of galaxies come together to form clusters, and those clusters are linked together by vast streams of hot gas known as filaments. These intergalactic links reach temperatures well over a million degrees and are almost completely invisible...until now.