An interesting piece in Universe Today over the weekend takes the dark matter out of the hunt for dark matter, but you’re probably going to want to approach this one carefully--or as Universe Today says, “put on your skeptical goggles and set them to maximum.” An Italian mathematician has done some creative number crunching and accounted for the force that holds galaxies together without the need for dark matter.
Today in pretty space pics: Behold, the Carina nebula--but not as it looks with the naked eye. Astronomers at the Atacama Pathfinder EXperiment (APEX), unsatisfied with the visible light spectrum images taken of this stunning swirl of blue interstellar dust, decided to begin imaging the region in sub-millimeter light invisible to the eye (represented by the the orange in the image above). Aesthetically speaking, it wasn’t a bad idea.
Today in pretty space pics: a beautiful cosmic bubble. Imaged by California-based skywatcher Larry Van Vleet, the pic shows a giant bubble of glowing gas being blown in the nebula NGC 7635, also known as the Bubble Nebula.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.