How humans could protect Earth from dangerous asteroids using HUGE magnet
Magnets up to 20 metres wide could be used in the experiment
Historians uncover first direct evidence of female gladiators in Roman arena
The remarkable image comes from a mosaic dating back approximately 1,700 years
Ancient discovery gives archaeologists rare glimpse into Bronze Age Britain
The find could prompt archaeologists to dive deeper in the surrounding areas for more clues about the lives of ancient Britons
