Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered a surprising connection between a supermassive black hole and the galaxy where it resides. Powerful radio jets from the black hole – which normally suppress star formation – are stimulating the production of cold gas in the galaxy’s extended halo […]

Black-Hole-Powered Jets Forge Fuel for Star Formation

What brought the dark ages directly following the Big Bang to an end? So-called “green pea” galaxies, which produce intensive UV radiation, are considered a possible explanation. Now researchers have examined a green pea in detail and found that it indeed emits sufficient radiation to explain cosmic reionization: The transition […]

Light and Darkness after the Big Bang: Compact galaxies reheated ...