Readers Respond to the March 2020 Issue
Letters to the editor from the March 2020 issue of Scientific American
Latest Stories
In Case You Missed It
Top news from around the world
A Visual Guide to the SARS-CoV-2 Coronavirus
What scientists know about the inner workings of the pathogen that has infected the world
Coronavirus Antibody Tests Have a Mathematical Pitfall
The accuracy of screening tests is highly dependent on the infection rate
The Problem of ‘Colonial Science’
Conservation projects in the developing world should invest in local scientific talent and infrastructure
Astronomers May Have Glimpsed Light from Merging Black Holes
If confirmed, the controversial result could open new vistas on cosmic collisions
Nature’s Goods and Services Get Priced
The gross ecosystem product, or GEP, tries to take into account the contribution of nature to the economy.
Why Is the South Pole Warming So Quickly? It’s Complicated
Much of the warming is linked to natural climate cycles happening thousands of miles away in the tropics
Mystery Object Blurs Line between Neutron Stars and Black Holes
Existing in the “mass gap” dividing two classes of cosmic heavyweights, the object could be the most massive neutron star, the lightest known black hole—or something stranger...
