NASAさんのインスタグラム写真 - (NASAInstagram)「⭐ ➡️💥 A Chandra supernova in the sky... This Chandra X-ray Observatory (@nasachandraxray) image captures a star in the constellation Cassiopeia that was obliterated by an explosion. What's left behind is this multicolored, three-dimensional object: a supernova remnant. ⁣ ⁣ Tycho's supernova remnant — named for Danish astronomer Tycho Brahe, among the first to spot it in 1572 — was a Type Ia, which occurs when a white dwarf star pulls material from, or merges with, a nearby companion star until a violent explosion is triggered, sending debris hurtling into space.⁣ ⁣ The image is providing clues to what caused the remnant's intriguing pattern of bright clumps and fainter areas. To emphasize the clumps in the image and the three-dimensional nature of Tycho, scientists selected two narrow ranges of X-ray energies to isolate material (silicon, colored red) moving away from Earth, and moving towards us (also silicon, colored blue). The other colors in the image (yellow, green, blue-green, orange and purple) show a broad range of different energies and elements, and a mixture of directions of motion. ⁣ Image Credit: X-ray: NASA/CXC/RIKEN & GSFC/T. Sato et al; Optical: DSS⁣ ⁣ #supernova #explosion #cosmos #universe #observatory」10月23日 6時15分