Every few milliseconds a radio signal flashes somewhere in the midst of the Vela constellation. It has been doing so for thousands of years, as far as we know; acting almost like a lighthouse, deep in space. Yet this is no artificial structure, no alien message from across the galaxy. Instead this pulsing signal is a marker: the tombstone of a long dead star.
The Week in Space and Physics #3
The Week in Space and Physics #3
The Week in Space and Physics #3
Every few milliseconds a radio signal flashes somewhere in the midst of the Vela constellation. It has been doing so for thousands of years, as far as we know; acting almost like a lighthouse, deep in space. Yet this is no artificial structure, no alien message from across the galaxy. Instead this pulsing signal is a marker: the tombstone of a long dead star.