Last year, astronomers were fascinated by a runaway asteroid passing through our Solar System from somewhere far beyond. It was moving at around 68 kilometres per second, just over double Earth&rsquo ...

Black holes have been that elusive, mystifying entity lurking deep in space, fascinating our every waking thought. The scientists would go on speculating about its existence for decades, but it wasn’t ...

Runaway black holes have moved from theoretical oddity to observed reality, and the picture they paint is as unsettling as it is awe inspiring. Instead of sitting quietly at galactic centers, some of ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

David Blair receives funding from the Australian Research Council. He is a member of the ARC Centre of Excellence for Gravitational Wave Discovery and is director of the Einstein-First education ...