US company uses giant spinning cannon to launch hundreds of pancake-shaped 'microsatellites' into space
Scientists claim that Mercury suffered a glancing blow during a collision with another protoplanet in its youth
Rare quadruple supernova on our 'cosmic doorstep' will shine brighter than the moon when it explodes in 23 billion years
Scientists finally know how long a day is on Uranus, 40 years after Voyager 2 first tried to figure it out
Rare Coloured Lightning Caught On Camera By ISS Astronaut 'Okay, This Is Something Out Of The Ordinary'