The catastrophic collision of a black hole and a neutron star sent ripples across the universe. New analysis of those ripples could upend a major theory about how these extreme pairs form.

GW200105 reveals an eccentric orbit before merger, challenging formation models.

Overall, Didymos is nearly 200 times more massive than its smaller companion, which explains why shifting the larger asteroid ...

NASA’s DART mission not only altered Dimorphos’ orbit around Didymos but also slightly shifted the asteroid system’s path ...

Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together but orbiting in an ...

Astronomers have reported observations of a rare star system consisting of one star orbiting a system of three more tightly ...

The discovery of the fourth star was done through an algorithm called QUADCOR, which isolates the distinct spectral fingerprints of all four stars simultaneously. By detecting the individual signals, ...

Astrolight CEO Laurynas Mačiulis explains how laser satellite communication could ease spectrum congestion, increase data capacity, and raise new engineering and policy questions for space ...