Savannah Guthrie, Anderson Cooper and Dr. Oz among new guest hosts of "Jeopardy!"

WATCH: Artificial Intelligence Beats Human Go Champion For The First TimeThe World's Largest Floating Solar Power Plant Is Being Built in Japan

Emmys 2021: "The Crown" and "Ted Lasso" win big, Michaela Coel makes historyThis Flexible Nano-Sensor Could Help Doctors Detect Breast CancerEngineer Proposes Hypersonic Jet That Could Fly From New York to London in 11 Minutes

France Will Install 1,000 Km of Solar-Panelled Roads in The Next 5 YearsPhysicists Might Have Just Solved One of The Big Problems With Light-Based Computers

This Electrically Conductive Concrete Melts Snow Without Chemicals

Australian Scientists to Begin Trialling Fully Implantable Bionic EyeThe community of traveling families using the globe as their classroom is growing. Welcome to the "world school" revolution

4 Baton Rouge officers charged in connection with "brave cave" scandalYoung Evangelicals fight climate change from inside the church: "We can solve this crisis in multiple ways"

Illinois semitruck crash causes "multiple fatalities," ammonia leak evacuation for residentsKansas police chief suspended in wake of police raid on local newspaper