Climate engineering: International meeting reveals tensions

At this point, the greatest danger of climate engineering may be how little is known about where countries stand on these potentially planet-altering technologies. Who is moving forward? Who is funding research? And who is ...

Galaxy found to float in a tranquil sea of halo gas

Using one cosmic mystery to probe another, astronomers have analyzed the signal from a fast radio burst, an enigmatic blast of cosmic radio waves lasting less than a millisecond, to characterize the diffuse gas in the halo ...

Youth activism is on the rise around the globe, says author

Greta and Malala get the headlines, but for every young leader pictured on a magazine cover, thousands more are working tirelessly for causes like climate justice, racial and gender equality, LGBTQ rights, and economic change.

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