The pandemic exposed a glaring health gap caused by systemic racism. Here’s how to narrow it
In this issue, a quantum mystery is solved, and we learn how to measure what matters
Lobsters, birds and some primates use quarantine to ward off infections
Now submerged caves in the Yucatán Peninsula contain remains of ocher-mining operations that date back at least 10,000 years.
Here are pandemic highlights for the week
Sea ice loss could ultimately beat the record low season of 2012
Teams are starting to test vaccines using messenger RNA or chimpanzee cold viruses to inoculate humans. Will their benefits last?
Originally published in June 1994
The decline seen in some studies is normal, experts say. But scientists must wait to see whether infection confers long-term protection
Dinosaurs were big, but these are the largest animals in the history of the planet—and we’re just beginning to understand the reasons for their size