The giant awakes

• Autores: Nigel Henbest
• Localización: New scientist, ISSN 0262-4079, Nº. 2914, 2013, págs. 46-49
• Idioma: inglés
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• Resumen

  • Henbest talks about the Milky Way galaxy. The center of the galaxy is a place of extremes. It has the highest density of stars, the fastest-moving stars, the most concentrated reservoir of gas and the strongest magnetic fields in the galaxy. And lurking at its very heart is the most enigmatic object of all the supermassive black hole. Known as Sagittarius A*--SgrA* for short--this dark presence whirls stars around at speeds approaching 20 million kilometers per hour, and is as massive as 4 million suns. SgrA* has in the past been responsible for mega eruptions that shaped the Milky Way into the galaxy it is today.