The Science Channel -- Learn about outer space, leading scientific exploration, new technology, earth science basics, & more with science videos & news from Science Channel.
AsapSCIENCE -- ASAPScience is a YouTube channel created by Canadian youtubers Mitchell Moffit and Gregory Brown. The channel produces weekly videos that touch on many different topics of science.
minutephysics -- MinutePhysics (styled without a space) is an educational YouTube channel created by Henry Reich. The channel's videos include time-lapsed drawing to explain physics-related topics in approximately one minute.
SciShow - SciShow explores the unexpected. Seven days a week, Hank Green, Michael Aranda, and Olivia Gordon delve into the scientific subjects that defy our understanding. (One episode linked below.)