March for Science organizers want to boost appreciation for research they see as under threat. Plus, scientists theorize that metallic hydrogen could be used to create superconductors and high-powered rocket propellant. And how frog saliva changes from high to low viscosity when it hits an insect.
New advances in stem cell research will one day make it possible to grow human transplant organs in animal hosts. And astrobiologists are looking at unusual environments on Earth for clues on how to search for life elsewhere in the solar system.
California governor Jerry Brown talks about how states can take the lead on issues like climate change and clean energy--with or without Washington, D.C. plus, internalized stereotypes that can guide career choice manifest as young as age 6.