Most ghost costumes are half-assed at best: no matter how good your mask and bedsheet might be, ghosts are meant to float. So if you’re really committed to a good costume, you should take it into zero gravity—up on the International Space Station, for example.

That’s exactly what Commander Scott Kelly did to try and spook his Twitter followers. During his (American) record-breaking year in space, Kelly has been using Twitter to give a fairly unparalleled sense of what life is like on the ISS. Normally, that’s a series of jaw-dropping photos, or some actual science; but just occasionally, we get creepy men floating around a space station. Tax dollars extremely well spent.