California Wants to Take Human Training Wheels Off Autonomous Vehicles

Posted on Categories Discover Magazine

Self-driving vehicles could soon be cruisin’ down California streets with no humans. (Credit: Waymo) You’ve read about self-driving cars cruising around California as companies try to prove and perfect their tech. A human sits in each car, but not because they want to joyride: it’s the law. But that could change. Last week, California lawmakers proposed legislation that would make it legal for companies to test self-driving cars without a human watchdog in the vehicl ...read more

Dawn of an Era: Astronomers Hear and See Cosmic Collision

Posted on Categories Discover Magazine

Two neutron stars merge into a kilonova. (Credit: Illustration by Robin Dienel, courtesy of the Carnegie Institution for Science) For hundreds of millions of years, two city-sized stars in a galaxy not-so-far away circled each other in a fatal dance. Their dimensions were diminutive, but each outweighed our sun. They were neutron stars — the collapsed cores left behind after giant stars explode into supernovas. Closer and closer they spun, shedding gravitational energy, until the stars t ...read more

Is Parkinson's A Prion Disease?

Posted on Categories Discover Magazine

The Journal of Neuroscience recently featured a debate over the hypothesis that Parkinson’s disease is, at least in some cases, caused by prions – misfolded proteins that spread from neuron to neuron. A prion is a protein that has taken on an abnormal shape and that can spread itself by making other, healthy molecules of the same protein adopt its abnormal configuration. The best-known prion disease is variant CJD aka “mad cow disease”, but some researchers believe that ...read more