In this week's NewsFlash, we find out how a giant parachute could help avoid satellite collisions, why the schizophrenic brain can't see a popular optical illusion and we discover that all octopodes (or octopuses?) are poisonous! Plus, we hear about bicycle day and the story of LSD, and Sarah Castor-Perry takes us back to the launch of the Hubble space telescope, this week in science history...