11,601 Swabs, 2,543 Wipes: How NASA Spent the Last 7 Years Protecting Mars from Humans

The Perseverance rover is the cleanest spacecraft in history. Here on Earth, as we continue to obsess over cleanliness and eradicating microscopic viruses, perhaps we should be turning to NASA for advice. Despite being in the midst of a global pandemic, the space agency launched the $2.4 billion Mars …