The Ultimate Pizza Quiz

Not all stars are gigantic. Neutron stars have a radius of about 10 km (6 mi), but they might have a mass that is a few times the size of our Sun. These dense stars, born from core-collapsing supernova star explosions, also rotate at incredible speeds – an estimated 600-712 rotations per second!

The word ‘mate’ caused quite a stir in 2005 when Australian Parliament banned the word from being used in the workplace. Prime Minister John Howard promptly objected, arguing that ‘mate’ was an integral part of Australian culture, and the ban was overturned within a day.

Is a tomato a fruit or a vegetable? In 1893, a ruling by the Supreme Court made the tomato a vegetable, officially! It is, however, actually a fruit. It seems as though the age-old debate will continue on for generations!