Bugs in space: the battle to keep the ISS clean. The ISS is teeming with bacteria – so how do you keep a space station clean? Turns out that if you take a partially closed built environment and fill it with humans for decades, you’ll end up with a pretty interesting microbial community.
Squeezing down the Theory Space for Cosmic Inflation. An updated search for primordial gravitational waves has not found a signal, which implies that some popular early Universe models are becoming less viable.