Which comes first, the galaxy or the black hole? We don’t know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel and collapse to form black holes, which can gobble up surrounding material and merge over time to form more massive entities. But it’s hard […]
Lead Story
Orbital Index
Today in Orbit
Live orbital activity drawn from the public Orbital Index.
Space weather
Reentry watch
Next launch
Featured Package
Featured Coverage
Front Page
Latest Updates
Public news ingest
Comments
Filed responses, corrections, and reader notes related to this story.