Space telescope spots 'invisible' galaxies

 作者:路拯     |      日期:2019-03-07 02:02:01
CALL it a cosmic construction site. Dust from frenetic star formation in the early universe completely shrouded some galaxies, blocking visible light from escaping into space. Now, the European Space Agency’s Herschel telescope has detected heat from five of these dusty galaxies, opening a window into the universe’s biggest stellar construction boom. Mattia Negrello of the Open University in Milton Keynes, UK,