Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
An illustration of two neutron stars colliding and merging to create a kilonova blast that new research indicates may be a perfect sphere.The collision of two neutron stars around 130 million light-years from Earth, and the unique physics this merger created, may have shed new light on dark matter.is such a challenge for scientists because it doesn't interact with light, which means it is effectively invisible to our eyes.
This leaves behind a collapsed stellar core with the mass of the sun crammed into a width of around 12 miles . That's a neutron star, named as such because it's filled with neutron-rich matter. Neutron stars are so dense that if a teaspoon of it were scooped up and brought to Earth, it would weigh around 10 million tons. That's about 30 times as heavy as the Empire State Building.
Unsurprisingly, given the extreme nature of neutron stars, a collision between two such stellar remnants spurs tumultuous types of physics that aren't seen anywhere else in the universe. In fact, scientists already think neutron star mergers are the only environments violent enough toThis is possible because neutron star collisions spray out matter rich in free neutrons, particles usually only found locked up in atomic nuclei alongside protons..
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