NASAさんのインスタグラム写真 - (NASAInstagram)「What do you see here? 🤔 Air traffic routes? Information moving around the global internet? This image is actually a map of the entire sky in X-rays taken by our Neutron star Interior Composition Explorer (NICER)!⁣⁣ ⁣⁣ ⁣ NICER is a mission aboard the International Space Station (@ISS) whose primary goal is to determine the size of neutron stars – dense remains of dead stars. This map is composed of 22 months of data. The arcs of X-rays converge on bright spots representing NICER’s most observed locations during its mission. Future technology will track pulsers so spacecraft can navigate themselves throughout the solar system — and beyond.⁣⁣ ⁣⁣ Credit: NASA/NICER⁣⁣ ⁣⁣ #nasa #space #sky #xrays #lit⁣⁣」5月31日 5時53分