A team of astronomers just discovered FRB 20240304B, a fast radio burst (FRB) from 11 billion years ago. It is the farthest FRB we now know, dating just about 3 billion years after the universe began.
"We still don't have an explanation for what those anomalies are." A cosmic particle detector has spotted a burst of strange radio signals from the ice of Antarctica that currently defy explanation.