The past year has changed Hong Kong forever. From crushing pro-democracy protests and dissent to the implementation of the National Security Law and ousted lawmakers, for many China’s tightening grip is choking the city. CNN’s Ivan Watson looks into what the future holds for the semi-autonomous city.

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?