Sunspots: What are they, and why do they occur?

NASA scientists suggest that first crewed missions to the Asteroid Belt and Jovian System could be scheduled as soon as 2071 to2087 and ~2101 to ~2121, respectively, while a launch to the Saturn System may occur by the year 2132.

Type Ia Supernovae Can Occur in Quadruple Systems, Astronomers Suggest

Supermoon: What is it and when does it occur?