Scientists love to discover strange new things! Every month, they share fun stories. This time, there are seven cool ones. One story is about tiny drones. These drones can fly using sound! They do not need a battery at all.
Engineers built the tiny drones in a lab. Sound waves push air inside small holes. This creates a force that moves them. The drones are very, very light. One weighs less than a tiny seed! Another cool story is about cookies. Scientists made cookies from old plastic bottles. Special yeast turns the plastic into food.
There are also stars with black holes inside! Scientists call them black hole stars. They found them using a space telescope. These discoveries are surprising and exciting. Science can turn strange ideas into real things!
