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Telescopes

From refractors to Dobsonians and Schmidt-Cassegrains — how telescopes work and how to choose the right one.

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Professional Telescopes: Inside the World's Great Observatories — Professional telescopes at Paranal Observatory at sunset

Professional Telescopes: Inside the World's Great Observatories

Professional telescopes are the largest eyes ever built — 8 to 39-metre giants. Inside the world's great observatories and how they see deep into the cosmos.

Telescope Mounts: The Complete Guide to Every Type — Telescope on a German equatorial mount under the Milky Way

Telescope Mounts: The Complete Guide to Every Type

Your mount decides whether you get steady views or shaky frustration. A complete guide to telescope mounts — alt-az, equatorial and GoTo — and how to choose.

Catadioptric Telescopes: Compound Designs Explained (2026) — Catadioptric telescope light path cutaway

Catadioptric Telescopes: Compound Designs Explained (2026)

A catadioptric telescope combines lenses and mirrors for a compact, powerful instrument. How compound telescopes like SCTs and Maks work, and their best uses.

Maksutov-Cassegrain Telescopes: The Planetary Specialist (2026) — Maksutov telescope and the full Moon

Maksutov-Cassegrain Telescopes: The Planetary Specialist (2026)

A Maksutov-Cassegrain is a compact catadioptric telescope prized for crisp planetary and lunar views. How Maks work, their pros and cons, and who they suit.

Schmidt-Cassegrain Telescopes (SCT): The Complete Guide (2026) — Schmidt-Cassegrain telescope under a crescent moon

Schmidt-Cassegrain Telescopes (SCT): The Complete Guide (2026)

The Schmidt-Cassegrain (SCT) is the most versatile telescope going — compact, long focal length, GoTo-ready. A complete guide to how SCTs work and their uses.

Dobsonian Telescopes: The Best Beginner Telescope, Explained (2026) — Dobsonian telescope under a starry sky

Dobsonian Telescopes: The Best Beginner Telescope, Explained (2026)

A Dobsonian is the most recommended first telescope in astronomy — huge aperture for the money. Why Dobsonians are the best beginner scope, and how to choose.

Reflector Telescope: The Complete Guide to Mirror-Based Telescopes (2026) — Reflector telescope under the Milky Way

Reflector Telescope: The Complete Guide to Mirror-Based Telescopes (2026)

How reflector telescopes work, the Newtonian, Cassegrain and Ritchey-Chretien designs, collimation, what they are best for, and how to choose one.

Refractor Telescopes Explained: How They Work, Types and Best Uses (2026) — Refractor telescope under the night sky

Refractor Telescopes Explained: How They Work, Types and Best Uses (2026)

How refractor telescopes work, achromatic vs apochromatic lenses, every refractor type, what they are best for, and how to choose one.

Telescopes: Types, How They Work, and How to Choose One (2026 Guide) — Types of telescopes under the Milky Way

Telescopes: Types, How They Work, and How to Choose One (2026 Guide)

The telescope, tracing its origins to the early 17th century with Hans Lippershey, is a cornerstone of astronomical progress. Galileo's improvements in 1609 led to monumental discoveries like Jupiter's moons, propelling the field forward. Subsequent centuries saw advancements in refracting telescope