Birth Echo: How Astronomers Found Evidence of a Black Hole ⚡ экспресс
Scientists have uncovered a 'cosmic fossil' — a gigantic, heated shell lurking beside a black hole. It bears the unmistakable signature of a supernova blast, offering the first solid proof that certain black holes are born in exactly this way: from the colossal collapse of a star. What other secrets might these 'ghosts' of stellar death be hiding?
The life of massive stars ends in a colossal explosion — a supernova. Afterward, a black hole may remain, but direct evidence of this scenario has long been missing. Now astronomers have spotted a shell of hot gas around the black hole SS 433 — like a ring of steam over a gigantic cup of coffee. Spectral analysis shows this 'steam' is only 20,000–30,000 years old, a cosmic blink. The gas composition and a nearby cloud of cold hydrogen confirm: it was ejected by the explosion, not by the black hole's jets. A surprise: the black hole is now devouring material from its own cooling shell — it's feeding on the 'ashes' of its birth. The progenitor was over 25 times the mass of the Sun. Such discoveries help clarify which stars turn into black holes and explain the origin of high-energy particles bombarding Earth.
🎯 The light from the explosion traveled 18,000 years to reach us: it could have been seen by Stone Age people when mammoths still roamed the Earth.