How Long Does the Coronavirus Last on Surfaces?

By now, let’s hope you’re safely ensconced at home—going a little stir-crazy, perhaps, but doing your…

Telemedicine Is a Safety Valve for a Strained Health Care System

“We’ve seen about a 30 percent increase compared with December,” said James Wantuck, physician and cofounder…

Covid-19 Fears Shouldn’t Trash Your Zero Waste Efforts

For Béa Johnson, the author of Zero Waste Home, one of the founding texts of the…

The Elegant Mathematics of Social Distancing

My cousin had to cancel his bar mitzvah, which was planned for Saturday in Washington, DC.…

Space Photos of the Week: Pretty Planets, Gorgeous Galaxies

The news is stressful but space is not, so this week we are going to cruise…

Phones Could Track the Spread of Covid-19. Is It a Good Idea? 

In 2011, two scientists at Cambridge University in the UK devised a clever way to measure…

Physicists Chip Away at a Mystery: Why Does Glass Exist?

If ultra-stable glass’s exceptionally low heat capacity really does come from having fewer two-level systems, then…