Harry is a U.K.-based staff writer at Live Science. He studied Marine Biology at the University of Exeter (Penryn campus) and after graduating started his own blog site 'Marine Madness,' which he continues to run with other ocean enthusiasts. He is also interested in evolution, climate change, robots, space exploration, environmental conservation and anything that's been fossilized. When not at work he can be found watching sci-fi films, playing old Pokemon games or running (probably slower than he'd like).
Researchers may be one step closer to uncovering the true identity of dark matter after studying how light gets bent out of shape in weirdly warped Einstein rings and other gravitationally lensed objects.
Since dark matter was first theorized in the late 19th century, scientists have made lots of suggestions about what dark matter could really be. However, the scientific community currently recognizes two hypothetical candidates as the most likely culprits: weakly interacting massive particles , which are predicted to behave much like other like particles; and axions, which are minute particles that likely behave like waves due to quantum interference.
Image 1 of 2Normally, gravitational lensing causes light from a distant object, like a galaxy or quasar, to appear to bend around a closer, equally massive object that is positioned between the distant object and an observer.
However, some Einstein rings, as well as other non-ring lensed objects, can appear duplicated, where multiple images of the same lensed object are visible. Scientists believe these oddballs are created when space-time is further bent out of shape by"dark matter halos" — hypothetical rings of dark matter that surround certain galaxies but have never been directly detected.
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