WIRED @WIRED
NASA’s got a nice instrument on board the ISS called NICER. It studies x-ray sources in space. Over a period of 22 months NICER watched the skies, looking at active places like neutron stars to check for x-ray sources. This is what it saw: https://t.co/z1cktlQ7lQ 📸NASA/NICER https://t.co/pUt9VrIcYP — PolitiTweet.org