Side-by-side comparisons

Numbers and trade-offs without the marketing voice.

Refractors use lenses, reflectors use mirrors. The choice changes cost per aperture, maintenance and what you see best.

Both are Earth-like in size and orbit nearby. They could not be more different on the surface.

The two largest spiral galaxies in the Local Group, on a slow collision course.

The two gas giants of the outer solar system — both spectacular through a telescope, very different up close.