The mutants Pyro and Blob, both part of the Brotherhood of Mutant Terrorists, attacked the observatory hoping to get coordinates of Scorpio. They took the scientists there hostage while they searched the computers.
The X-Men flew in the Blackbird to the observatory. Colossus attempted to attack Blob without success. Pyro attacked the heroes but Storm countered with wind. When the fires died down there were no sign of either villain. Police showed up outside so the heroes left before they were blamed for the attack.