X-ray and optical image of a supernova remnant, showing various colours of gas indicating various elements.
Supernova remnants mark the graveyards of dead stars; some passing from the Main Sequence into obscurity in the blink of an eye (a mere 50 million years). [X-ray (NASA/CXC/ESO/F. Vogt et al.); Optical (ESO/VLT/MUSE & NASA/STScI)]




Work together with your three closest neighbors, for one minute.