A recent report has thrown light on what all lies between galaxy clusters. It has claimed that the Planck space telescope has managed to nail down a bridge of hot gas, which is apparently connecting a pair of galaxy clusters across 10 million light-years of intergalactic space. The pair of galaxy includes Abell 399 and Abell 401, and both lie around 1 billion light-years from planet Earth.

"Planck is helping to reveal hidden material between galaxy clusters that we couldn't see clearly before", said James Bartlett of NASA's Jet Propulsion Laboratory, Pasadena, Calif., a member of the U. S. Planck science team.

It was further told that Planck is a European Space Agency mission well supported by NASA. It is basically targeted to capture the most ancient light of the cosmos, the cosmic microwave background. It was earlier by an X-ray data from ESA's XMM-Newton that it got revealed that there is hot gas between the clusters, but this new revelation has almost confirmed it now.

It is believed that there has been a lot change seen in the current cosmos from the early universe. With the result of massive, hot gas clouds, a lot has changed in our cosmos today and perhaps would continue too.