Monster Galaxies

Between darkened suns
they drift,
twin-worlds caught
in star-dust lanes.
Their paths cross,
a slow collision
of forgotten sounds –
each grain of memory,
buried deep
beneath the waves.
Gas-trails link them now,
a silvered tether stretched
across the void –
binding
what was once apart.
A promised birth
of burning mass
whose heat will sear
the very bones of time.
Star-embers sizzle
in the stillness –
a scar to wear
and bear,
as light
is torn from night.

This poem is inspired by recent research, which has observed a pair of galaxies in the act of merging 12.8 billion years ago.

The early universe was a time of intense activity, where galaxies were rapidly forming and evolving. Understanding how these early galaxies grew and interacted is crucial for piecing together the history of the universe. One particularly intriguing aspect is the role of quasars – extremely bright objects powered by supermassive black holes at the centres of galaxies. These quasars are believed to form when two gas-rich galaxies merge, causing gas to funnel towards the black holes, igniting intense quasar activity. However, direct observations of such early-stage galaxy mergers and their impact on quasar formation have been rare, leaving gaps in our understanding of these processes.

To address this, a team of researchers used the ALMA (Atacama Large Millimetre/submillimetre Array) radio telescope to study a newly discovered pair of quasars, located 12.8 billion light-years away, during the first 900 million years of the universe. This research revealed that these quasars, though faint, are part of merging galaxies connected by a bridge of gas and dust. The galaxies are rich in gas, suggesting that this merger will not only lead to more intense quasar activity but also trigger a burst of new star formation, ultimately creating a super-bright ‘monster galaxy’. These findings are significant as they provide direct evidence of the processes driving the early evolution of galaxies and black holes, offering valuable insights into the formation of some of the most massive and luminous objects in the universe.