• Before schoolchildren discovered Ediacaran fossils in the UK, geologist Reg Sprigg found some at Ediacara in the Flinders Ranges of South Australia in 1946. These weren’t initially recognised as Ediacarans as we now understand them (12 January, p 28).
• Not very heavy: the space rock that hit the moon during its eclipse probably had a mass of 2 kilograms (26 January, p 6).
• The missing diagram of the Denisova cave in Siberia can be found at newscienti.st/DenisovaPlan (2 February, p 12).
