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Explore One

Explore One Galileoscope Refractor — STEM Telescope Kit for Learning Optics and Astronomy

Explore One Galileoscope Refractor — STEM Telescope Kit for Learning Optics and Astronomy

$69.99
$69.99
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Shipping calculated at checkout.

The Galileoscope is the telescope you build yourself — and then actually use to see what Galileo saw. Designed for classrooms, science fairs, and curious kids, this 50mm refractor kit goes together in minutes without any tools or glue. Build it, then look at the Moon's craters, Saturn's rings, and Jupiter's moons through your own handmade telescope.

Over 250,000 kits have been distributed in 110+ countries. It's the go-to STEM telescope for teaching optics, magnification, and scientific observation in a hands-on way — and it actually performs well enough to be genuinely rewarding to look through.

What you'll see:

  • The Moon — craters, mountains, and the terminator line in good detail at 25× and 50×
  • Saturn's rings — clearly visible at 50× with the Barlow lens attached
  • Jupiter's four Galilean moons as small dots — exactly what Galileo discovered in 1610
  • Open star clusters and bright double stars

What's in the box:

  • Galileoscope telescope body — all parts for tool-free, no-glue assembly
  • 25× eyepiece — standard astronomical view for first-look observing
  • 2× Barlow / 17× Galilean eyepiece — doubles magnification to 50×, or replicates Galileo's original upright view at 17×
  • Tabletop tripod base — stable platform without needing a full floor tripod
  • Red-dot finder — quick aiming without looking through the eyepiece
  • Star map — a printed guide to get you started on the night sky
  • Assembly instructions — clear, beginner-friendly step-by-step guide

Beginner note: The Galileoscope accepts a standard camera tripod thread (tripod not included). Mounting it on a camera tripod makes extended observing sessions much more comfortable, especially for kids.

Specs:

Aperture 50mm (2 inches)
Focal Length 500mm (f/10)
Magnification 25× standard; 50× with 2× Barlow; 17× Galilean (upright) mode
Field of View 1.5° at 25×; 0.75° at 50×
Eyepiece Barrel 1.25" — standard size, compatible with additional eyepieces
Assembly Tool-free, no glue — classroom ready, assembles in minutes
Mount Tabletop base included; standard camera tripod thread for optional tripod use

Build it tonight and look at the same moons Galileo discovered over 400 years ago — now with your own hands.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
Most orders ship within 5 business days. You'll receive tracking information within 24 hours of your order leaving the warehouse. For full details, visit our Shipping Policy.
Orders cancelled after 48 hours are subject to a $20 administration fee. If your order has shipped, you are responsible for return shipping costs. Refunds are issued to the original payment method. See our full Refund Policy for details.
Yes! If you find a lower price at another authorized online retailer within 6 months of your purchase, we'll refund the difference. Learn more on our Price Match Guarantee page.
All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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