A similar event, discovered in 2020, may offer a clue. In the ancient Messier 81 galaxy, two white dwarfs—the remnants of smaller stars—collided, potentially forming a magnetar. White dwarfs ...

In 2022, astronomers detected another signal originating from the outskirts of its galaxy, Messier 81, where no active star formation was taking place. "That event single-handedly halted the ...

NASA’s James Webb Space Telescope captured the stunning image of Cartwheel Galaxy. This landscape of “mountains” and “valleys” speckled with glittering stars is actually the edge of a nearby, young, ...