SciShow
Where Did Mercury’s Spots Come From?
The Sun isn’t the only celestial body in the solar system to boast spots of its own. Mercury, too, has its fair share, and they’re worth wondering about.
Curated Video
Racking Up the Miles
Dr. Forrester reviews the parts that make up the solar system by identifying the planets and discusses the role of satellites and space probes. She also designs a planetary brochure by analyzing one planet’s properties and features.