Three years ago, two neutron stars collided in a cataclysmic crash, the first such merger ever observed directly. Naturally, scientists kept their eye on it — and now, something strange is happening.
A neutron-star crash spotted 3 years ago is still pumping out X-rays. But why? : Read more
A neutron-star crash spotted 3 years ago is still pumping out X-rays. But why? : Read more