But there are a variety of ways you can safely view the September 21, 2025, partial solar eclipse. If you have a ‘scope, you’ll need a safe solar filter on the sky end of it in order to search for sunspots or watch a solar eclipse safely. There’s too much to say about solar filters to include in this article, so we refer you to Fred Espenak’s article on safe solar filters. It’s easy to use, plus multiple people can safely watch the eclipse (or see sunspots) at the same time. Solar eclipse glasses – or eclipse viewers – are super easy to use, and they’re sort of cool-looking.