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Printing out a plane, piece by piece

Printing out a plane, piece by piece

3-D printed parts are in planes right now, but manufacturers are proceeding carefully out of safety concerns

Plastic Yoda figurines, spinning tops and other knickknacks aren’t all you can make with a 3-D printer. The world’s largest aerospace companies have bigger things in mind. Much bigger. More…

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Preparations begin for the Great American Solar Eclipse

Preparations begin for the Great American Solar Eclipse

Get the most out of next year’s once-in-a-lifetime experience

World’s largest space telescope completed

World’s largest space telescope completed

Webb will unveil cosmic wonders we’ve never seen before

Don’t blame it on tonight’s super-supermoon

Don’t blame it on tonight’s super-supermoon

The real risk is for pseudoscience, not mood swings or tsunamis

Breaking limits in science and life

Breaking limits in science and life

A woman astronomer’s 20-year quest to find 100 Earth-like planets is within reach

I Just Need Some Spacetime — Separating Twins with Special Relativity

I Just Need Some Spacetime — Separating Twins with Special Relativity

The twin paradox shows how approaching the speed of light alters both time and space

Loosening up under pressure

Loosening up under pressure

A mineral’s strange properties may explain the rift between the earth’s layers

A twinkle of light in a microscope’s eye

A twinkle of light in a microscope’s eye

Researchers are using biological glow sticks and finely-tuned cameras to look deeper within cells.