But there are still many unanswered questions. The halo that surrounds our Galaxy is one mystery region... The centre of the Galaxy hides even more secrets. (Heather Couper)

But there are still many unanswered questions. The halo that surrounds our Galaxy is one mystery region... The centre of the Galaxy hides even more secrets.

Heather Couper

Related topics

centre galaxy halo mystery region questions surrounds

Related quotes