Look up, way up: distant radio galaxies reveal hidden structures right above our heads

June 2nd, 2015

By observing galaxies billions of light-years away, an international team of astronomers has detected tube-like structures mere hundreds of kilometres above the Earth’s surface.

Now “we can study subtle and complicated processes that we had only ever caught fleeting glimpses of previously,” says Professor Gaensler (image by CAASTRO / Mats Björklund/ Magipics)