An international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a ghostly ring of dark matter formed long ago during a colossal collision between two galaxy clusters. This is the first time that dark matter has been found with a distribution that differs substantially from the distribution of ordinary matter.
| Name | Type | Role | |
|---|---|---|---|
| Lars Lindberg Christensen | Writer | ||
| Ana Lopes | Writer | ||
| Dr Joe Liske (Dr J) | Guest Star | ||
| Lars Lindberg Christensen | Director |