Astronomers have detected the most distant megamaser ever observed, born from colliding galaxies.
This powerful cosmic signal acts like a natural laser, revealing how galaxies formed in the early Universe.
https://jornalciencia.pt/um-laser-cosmico-atravessa-8-mil-milhoes-de-anos-de-universo/?lang=en
by JornalcienciaPT
2 Comments
[Here’s the paper](https://arxiv.org/pdf/2602.13396)
Wild to think this signal started traveling when universe was basically a toddler compared to now. Makes me wonder what other cosmic messages are still on their way to us that we won’t detect for another few billion years. The timing is just mind-bending – like getting mail from ancient civilizations except it’s galaxies crashing into each other.