In this false color map, the white regions depict galaxies, while the red regions depict the presence of the dark matter bridge.
For the first time ever, astronomers have an image of the bridge that ties galaxies together.
Captured by researchers at the University of Waterloo in Ontario, Canada, the composite image is proof that dark matter acts as a giant intergalactic web that connects galaxies throughout space and time. Their findings were published in Monthly Notices of the Royal Astronomical Society.
Dark matter is an invisible force that doesnt emit or reflect light, and is only detectable through gravity. It makes up around 27 percent of the observable universe and scientists have long predicted that the ghostly substance plays a crucial role in the makeup of our entire universe.
For decades, researchers have been predicting the existence of dark-matter filaments between galaxies that act like a web-like superstructure connecting galaxies together, Mike Hudson, an author of the study, said in a statement. This image moves us beyond predictions to something we can see and measure.
The composite was created with images of over 23,000 galaxy pairs collected from a multi-year sky survey at the Canada-France-Hawaii telescope.