Seeking galaxies by gaslight

Astronomers at the Australia Telescope National Facility (ATNF) at Parkes, NSW, have found a way to look through the interstellar dust that hinders our view of the Universe. A special radio wave 'receiver' enables radio waves emitted by hydrogen gas to be detected. These waves can penetrate the dust and starlight of the Milky Way, enabling astronomers to detect faint, small or distant galaxies which would otherwise remain hidden. So far the HIPASS (Hi Parkes All Sky Survey) has unveiled more than 600 new galaxies behind the Milky Way.

ECOS Archive

Welcome to the ECOS Archive site which brings together 40 years of sustainability articles from 1974-2014.

For more recent ECOS articles visit the blog. You can also sign up to the email alert or RSS feed