News tagged with radio waves

DRAGNs in the sky

A radio galaxy is a galaxy that emits large amounts of radio waves. They were first discovered in the 1950s, but it wasn't until the 1960s when a technique known as aperture synthesis was developed that we could resolve the ...

dateSep 09, 2014 in Astronomy
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Swirling electrons in the whirlpool galaxy

The whirlpool galaxy Messier 51 (M51) is seen from a distance of approximately 30 million light years. This galaxy appears almost face-on and displays a beautiful system of spiral arms.

dateAug 20, 2014 in Astronomy
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Black hole trio holds promise for gravity wave hunt

The discovery of three closely orbiting supermassive black holes in a galaxy more than four billion light years away could help astronomers in the search for gravitational waves: the 'ripples in spacetime' predicted by Einstein.

dateJun 25, 2014 in Astronomy
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A telescope is born: Australia SKA Pathfinder

It may look like just dots on a page, but an image of distant galaxies taken last week represents a huge step forward for CSIRO's Australia SKA Pathfinder (ASKAP) radio telescope in Western Australia.

dateJun 11, 2014 in Astronomy
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