The researchers used a method known as weak gravitational lensing to combine photos obtained over a period of years to demonstrate the existence of dark matter. Images from over 23,000 galaxy pairings located 4.5 billion light-years distant were used to generate the composite.
We may not have a better understanding of what this stuff is made of, but we now have a tangible picture of its presence between galaxies.
Indeed, the picture is a significant step toward legitimizing dark matter and dark energy at a time when other scientists are suggesting ideas that eliminate the requirement for dark matter completely.
