Black holes represent some of the most extreme environments in the universe. Theyre the sources of the strongest consistent gravitational fields, which allows us to test Einsteins Theory of General Relativity to an extent thats impossible with small objects. But were also reaching our limit of what we can learn about one remotely. So various authors have put forward ideas for how we might eventually send a probe directly to a black hole to observe it up close. One of the most vocal of those authors is Cosimo Bambi of Fudan University in Shanghai - and he recently released a paper, available in pre-print on arXiv, about what it would take for us to send a gram-size probe to a nearby black hole.