MOSCOW -- A deadly explosion at a naval weapons testing range in northwestern Russia. A brief spike in radiation levels. An evacuation order issued, then rescinded, for a nearby village. Last week's ...

A new study suggests that primordial black holes (PBHs)—hypothetical remnants from the early universe—might be on the verge of an unprecedented cosmic event: an explosion observable with current ...

When a massive star goes supernova, its explosion must be a perfectly spherical fireball at least, that’s been the theoretical assumption for the last several decades. However, recent observations ...