Space
Smoky mass map weighs fat ancient galaxy cluster
It's not something in your eye. It's not smoke from a late-night barbecue. You're looking at a map of the most massive ancient galaxy cluster ever seen
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It's not something in your eye. It's not smoke from a late-night barbecue. You're looking at a map of the most massive ancient galaxy cluster ever seen
The first glimpse of primordial gravitational waves is a landmark in our understanding of the universe – but what exactly are these all-important ripples?