CubeSats are small enough to fit into the spare space around rocket payloads meaning they are a more affordable alternative to conventional satellites.

Source: BBC Future

Date: September 17th, 2019

Link to video (with 15 second advert lead-in): https://www.bbc.com/news/av/technology-49552894/how-tiny-satellites-could-transform-weather-forecasting

Discussion

1. The video here is about hand-sized satellites transforming weather forecasting. What else could a network of small satellites improve?
2. A hand-sized satellite whizzing through space is an enormous object that can do significant damage if it hits a big satellite or spacecraft. Isn’t the proliferation of these small satellites dangerous?