The US president has tried to soothe nerves over oil and markets, but his comments still lack clarity, writes Anthony Zurcher.

Despite Iranian threats to destroy any ships that pass through a key maritime route, some ships are still doing so.

The case questions whether lawmakers had authority to redraw districts outside the census cycle. Attorneys spent an hour debating constitutional language.

A new study in the journal Nature Cities shows that as temperatures rise aboveground, the number of subway riders reporting uncomfortable heat belowground increases. Northwestern University researcher ...