Learn from Astronaut Chris Hadfield about space debris Space debris, also known as space junk, poses a significant challenge for space exploration. One interesting aspect is the Kessler syndrome, proposed by NASA scientist Donald J. Kessler. This theory suggests that as the amount of space debris increases, the probability of collisions between objects also increases. These collisions can create more debris, leading to a cascade effect where the density of debris grows exponentially, making cert