How to save the International Space Station and prevent the dreaded “gap”

Large scale space habitats, popularized by Princeton’s Gerard O’Neill, have been written off as science fiction for decades. But a new study is optimistic that advances in space infrastructure could make them a reality. "It’s certainly what SpaceX are working toward ... this genuinely is possible."

How do viruses affect astronauts in space? Here's what we know so far.

Making a Camera for the James Webb Space Telescope