Key Points
The findings have been deduced from the ripples that are created by each collision that causes wrinkles throughout different families of stars, affecting how they move and behave in space...
However, a new study reveals the last time a galaxy struck Akash Ganga was billions of years earlier than what scientists had predicted...
By looking at how these wrinkles dissipate over time, we can trace when the Milky Way experienced its last big crash and it turns out this happened billions of years later than we thought, Thomas Donlon of the Rensselaer Polytechnic Institute said...
The finding suggests that rather than these stars originating from the ancient GSE merger, they must have come from a more recent event dubbed the Virgo Radial Merger, which took place less than three billion years ago...
In 2020, Thomas identified stellar wrinkles linked to a dwarf galaxy collision, named the Virgo Radial Merger, around 2.7 billion years ago...
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