SpaceMoonquakes unearthed in data from 1970s Apollo mission An algorithm based on speech recognition software has dug up hundreds of tremors on the moon missed by earlier searches – and could help find quakes on Mars 51¶¯Âþ
EarthAncient crystals show Earth's magnetic field switched on early Earth needed its magnetic field to protect the nascent atmosphere – but when did the field turn on? Magnetic rocks show it was earlier than we thought 51¶¯Âþ