For decades, Europa has been the optimistic counterpoint to a lonely solar system, a small icy world that seemed to…

Hints of impossibly bright, massive objects in the infant universe have forced astronomers to rethink how the first cosmic structures…

Far from being solid bullets of rock, many asteroids are fragile clusters of debris that spin so quickly they flirt…

The Sun’s most violent flares are turning out to be even more extreme than I, or many solar physicists, had…

Astronomers have caught a star in the act of being ripped apart by a supermassive black hole, unleashing a blast…

Stellantis is pulling the plug on every Jeep and Chrysler plug-in hybrid in its North American lineup, abruptly ending a…

NASA is cutting short a routine half-year stay on the International Space Station after a medical issue with one astronaut…

Far beyond the bright pinwheels and glowing nebulae that dominate space photography, astronomers have finally confirmed something they had only…

The supermassive black hole at the center of the Milky Way has long looked quiet, a dim and seemingly dormant…

NASA halted a planned spacewalk at the International Space Station because of what it described as a “medical concern” involving…