News of the first takers of the desperately awaited Pfizer-BioNTech coronavirus vaccine spurred some hope and excitement amid new lockdowns and spiraling infections in much of the US and the UK. But in Russia, one of the few countries already offering vaccines to a wider segment of the general public, the turnout in the first two weeks of “large-scale” vaccination has been less than enthusiastic.

A new treatment could restore some mobility in people paralyzed by strokes
What has Perseverance found in two years on Mars?
This robot automatically tucks its limbs to squeeze through spaces
Greta Thunberg’s new book urges the world to take climate action now
Glassy eyes may help young crustaceans hide from predators in plain sight
A chemical imbalance doesn’t explain depression. So what does?