Andrew Zaleski

Andrew Zaleski is a freelance journalist and special to CNBC.com.

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First Autonomous, Human-Sized Drone Revealed at CES

The EHang184 can carry one passenger for flights up to 23 minutes.

3D Systems CEO Steps Down

The news comes as the 3-D printing company's share price has fallen 90 percent over the last year.

MakerBot Lays Off 20 Percent of Its Staff for the Second Time This Year

The layoffs at the 3-D printer company are in addition to the significant cuts made in April.

A Startup Has Solved Fracking's Dirty Problem

Boston's Oasys Water is pioneering a revolution in the wastewater treatment industry that could turn it on its head.

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