U.S. speed climber Emma Hunt broke the Pan American Women’s speed climbing record with a time of 6.25 seconds. Soon, the ...

The NTT IndyCar Series heads to Toronto for the Honda Indy on Sunday, racing through the tight turns of Exhibition Place's 1.786-mile street circuit.

Mercury's surface is continuously replenished by extraterrestrial bombardment, according to a study linking detected events to meteoroid strikes by objects 13-21 centimetres in radius. These ...