When the air is partly ionized, freely moving electrons slightly slow down the radio signals travelling to Earth from GPS and ...

Marine Traffic map lets anyone trace a vessel that has a position ‘transponder’ similar to those used by aircraft Transponder broadcasts the ships’ position, name, course and speed allowing ...

Maps produced using the space agency’s Asgard program which tracks an estimated 4,000-5,000 meteoroids a day Every day, more than 40 tonnes of meteoroids hit our planet, with larger chunks of ...