Astronomers do not know where thousands of “city-killer” asteroids are, Nasa’s head of planetary defence has admitted.

Dash cam footage captures several separate incidents involving risky driving decisions around trucks. In one clip, a Swift driver’s maneuver leads to a collision inside a crowded truck stop. Another ...

When Google went down, millions of people felt it instantly. Explore how this crash revealed just how dependent the world is on a single company.