
Sigal Samuel
Correspondent
Latest articles by Sigal Samuel


Your gift can cheer up one person. Or it can cheer up many — for the same price.


Economists have a plan to buy herd immunity through a “vaccine stimulus.” But it could backfire.

As many seniors face down the winter holidays alone, it may be tempting to give them a companion robot as a gift.


A breakthrough on the “protein folding problem” can help us understand disease and discover new drugs.


The data on how people are giving in 2020 may surprise you.

Pfizer and Moderna have discovered effective vaccines, but some of us will get the shot before others.


From Denmark to the US, outbreaks on mink farms raise concerns that a virus mutation could make our vaccines ineffective.


Meat alternatives are tearing down the idea that eating animals is normal, natural, and necessary.

“It’s so important that we get this right. We don’t have a history of doing this well.”


Brazilians on the edge of the Amazon rainforest are working with cattle ranchers — not against them — to save the climate.