Minnesota Zoo director of animal care Anne Rivas examines Marat, a Przewalski's horse foal, and his adoptive mother Alice, a ...

Personal freedom should always be coupled with the responsibility to fight for the freedoms of everyone else in our ...

Very massive stars are cosmic "rock stars" that live fast, die young and leave black holes in their place. During this ...

Few things in space are as bright as a supernova, but recently astronomer captured a flash out in the cosmos so great their ...

The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times ...

Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

Suppose the birth of the universe was not a definite start, but a cosmological rebound far within a black hole? This radical idea has been picking up steam as new theoretical research, spearheaded by ...

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...

A groundbreaking simulation reveals how neutron star mergers forge black holes, generate gamma-ray bursts, and scatter gold ...

Astronomers have witnessed a distant supermassive black hole devouring its surrounding matter so rapidly that it is "burping" ...

Study reveals that high-energy cosmic rays are born in magnetic fields during neutron star mergers, a prelude to black holes.