Paolo Nespoli, an Italian astronaut who's now orbiting our planet aboard the International Space Station, missed pizza so much that he boldly brought it up to his boss during a live streamed public event.
"So 'is it gross?' and 'will you see microbes from space?' are probably the two most common questions we get about this work", said author David Coil, a microbiologist at UC Davis.
The ISS has allowed for over 200 different foods to now be consumed in space, cheese doesn't make the cut but it does allow for the astronauts to eat some good ol' home cooking. "So it is probably no more or less gross than your living room".
Tim Peake become the first Briton to walk in space and live on the International Space Station (ISS).
The International Space Station has been colonised by mysterious strains of bacteria - including some bugs which appear to be thriving in the vacuum of space. What the researchers found on the orbiting laboratory was rich and diverse microbial community, similar to the microbiology of a private home. That's interesting because the space environment is very controlled; only a handful of astronauts visit a year.
"Studying the microbial diversity on the ISS is not only of relevance to space exploration but also serves as an important comparison to buildings on Earth because the ISS has many novel features, such as limited influx of microbes", he said. Nespoli, along with NASA astronaut Randy Bresnik and Roscosmos commander Sergey Ryazansky, began their outer space mission in July and have continued to share photos and videos of their findings.