Star Trek

Abell 222 is a giant group of galaxies in deep space. So is Abell 223 — one of Abell 222’s nearest neighbors. Each galaxy in each group is home to a massive number of stars, which means the clusters are brimming with light. But if you peer through a telescope at the space between the two galaxy clusters, you won’t see anything, just a dark patch of sky. The scenery would be the same if you could ride a spaceship from one group of galaxies to the other. 

The space between the two galaxy clusters is, however, anything but empty, according to a new study by astronomers.

Visit the new Science News for Kids website and read the full story: An invisible cosmic bridge

Read more http://www.sciencenews.org/view/generic/id/342505/title/FOR_KIDS_An_invisible_cosmic_bridge

That is really fascinating!  Could dark matter be the material of wormholes, too, then?