The Leading Edge

We explore science news each week, and reveal how new discoveries and advanced technologies are changing the world.

Meet one of the Internet's most prolific distributors of hyper-partisan fare. From California, Cyrus Massoumi caters to both liberals and conservatives, serving up political grist through various Facebook pages. Science correspondent Miles O'Brien profiles a leading purveyor of junk news…

Facebook founder and CEO Mark Zuckerberg finished his visit to Capitol Hill with another long hearing Wednesday. After two days, do we have a better understanding of how the social media giant gathers data? Science correspondent Miles O'Brien joins Amna…

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