Analysis and Comment

Edwin E. ‘Buzz’ Aldrin Jr. poses for a photograph beside the U.S. flag deployed on the moon during the Apollo 11 mission on July 20, 1969. Neil A. Armstrong/NASA/AP Photo

Who owns the moon? A space lawyer answers

Forty-nine years ago, on July 20, 1969, American astronauts planted a US flag on the moon. A space lawyer explains the implications, who owns the moon, and what it means for lunar mining.

Why I teach math through knitting

In this professor's class, there are no calculators. Instead, students learn advanced math by talking, drawing pictures, playing with beach balls – and knitting.

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Facebook and privacy

Social media companies combine many pieces of information into a complex digital profile. Tetiana Yurchenko/Shutterstock.com

To serve a free society, social media must evolve beyond data mining

For years, watchdogs have warned of the potential problems of sharing data with online companies. The Facebook data crisis has made these concerns much more real. What should be done now?

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Influenza 1918–2018

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