Explore Science on This Day for 8 November with Edmond Halley’s prediction of a returning comet, Wilhelm Röntgen’s discovery of X-rays, and asteroid 2005 YU55’s close approach to Earth. Find practical middle and high school science activities connecting astronomy, physics, medicine and engineering. Discover 109 November science history stories in four classroom-ready formats.

Comets are beautiful, shooting across the night sky and streaking out these glorious beautiful tails behind them into the cosmos, but...