While searching for the genetic cause of and a treatment for Marfan syndrome, researchers have possibly found a way to help other patients with enlarged aortas as well, writes Gina Kolata at the New York Times.

People with Marfan syndrome typically are thin with long limbs and flexible joints. They also develop heart problems as the aorta grows.

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New results from the NASA Twins Study indicate that the immune system may rev up when in space, the Washington Post reports.

Kelvin Droegemeier, the new science advisor, spoke at the American Association for the Advancement of Science meeting, Geekwire reports.

In PNAS this week: whole-genome assembly for the white shark, paper-based microfluidic method for detecting the malaria parasite, and more.

The World Health Organization has announced the members of its gene-editing committee, according to NPR.