In two studies published this year, researchers have confirmed the discovery of previously unknown bacterial species aboard China’s Tiangong space station and within NASA’s high-sterility clean rooms. Though some of the sample collection dates back to earlier missions – most notably swabs taken aboard Tiangong in 2023 and NASA’s clean room linked to the 2007 Phoenix Mars lander – the timing of the publications is critical.
Expand Expanding CloseNew bacteria raise red flags for planetary protection efforts
