U.S. President Donald Trump's tariffs are facing legal headwinds for the first time — but he has other tools he could deploy ...

Canadian scientists working on asteroid missions, exploring the universe through the James Webb Space Telescope or helping to ...

The American ambassador to Canada is pushing back on Ottawa's travel advice, saying his country doesn't search phones at the ...

A large Russian drone-and-missile attack targeted Ukraine's eastern city of Kharkiv on Saturday, killing at least three ...