▲ Raspberry Pi
The micro-computer is now powerful enough to replace your home desktop, assuming you still actually have one.
▲ Nearby worlds
Two Earth-like planets have been spotted just 12.5 light years from here. A quirk of geometry means any astronomers there could also see Earth, so wave hello!
▼ Aliens
Or not. A scan of stars within 160 light years of Earth has spotted no alien signals. Perhaps they have just got us on mute?
▼ Elon Musk
The SpaceX CEO tweeted an image declaring plans to “Occupy Mars” – failing to notice it was a picture of the moon, coloured red…
