Steve Caplin discusses the astronauts whose space stay of 8 days has turned into 8 months. Nuclear power could be safer if the power stations are buried one mile underground. Water cremation is coming to the UK soon. There's an e-ink computer which will work in sunlight – though not for very long. Italian scientists have a humanoid jetpack robot to rescue people on mountains – with a few drawbacks. Ultrasonic joining solves the problem of sticking wood and metal. And biohybrid computing, which already gives robots locusts' ears is now adapting fungi's mycelium root communication to electronics.
