Oggi, sopra le nostre teste, orbitano oltre 34.000 oggetti artificiali. Solo circa 10.000 sono ancora operativi e fondamentali per la nostra vita quotidiana. Il resto? È lì, invisibile ma sempre presente. Per capire davvero cosa sta accadendo, è fondamentale conoscere come funzionano i satelliti, comprendere le orbite in cui si muovono, e agire per preservare lo Spazio prima che sia troppo tardi. Pierluigi è professore associato presso il Dipartimento di Scienze e Tecnologie Aerospaziali del Politecnico di ...

The Trump administration may eliminate federal funding for its new TraCSS program, which monitors the growing amount of space debris in orbit. https://t.co/6IANUZPAgj ...

This is a marble. It's small. It's light. It's only a few grams.It's quite harmless in my hand. But if we were to place this marble in orbit, it would suddenly gain 8 kilometers per second of speed. That's 8 kilometers per second.Think about it. That's around 20 times faster than a bullet. It will take this marble less than 10 minutes to travel from London to New York.And even something this tiny and innocent could cause a disaster. Why. Well, at those speeds, it's not only about the size. It's also about t ...

(air whooshing) - [Onlooker] What is that. - [Onlooker] Oh, my God. [Presenter] Space debris is falling to Earth in record numbers.While most objects burn up on reentry, a small percentage survives to strike the ground. - There's a feeling we are not safe, and it's true. Even if the risk is small, it's there.- [Presenter] Recent examples of space debris hitting the surface of the planet have sparked safety concerns. - [Onlooker] Where is it gonna land. - [Presenter] As space-launch traffic, which is an all- ...