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You can 3D print your own telescope, but don't expect it to be a money-saver

3D printing your own telescope is rewarding and customizable, but it rarely saves money once optics, materials, and time are included.

The race to build a super-large ground telescope is likely down to two competitors

I have been writing about the Giant Magellan Telescope for a long time. Nearly two decades ago, for example, I wrote that ...