Medney (" Beyond Kuiper ") and co-author Don Macnab-Stark have crafted an intelligent examination of the human condition in the 23rd century as it surges into an existential era of decision, and we’ve ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

Low Earth orbit is filling up with industrial-scale fleets of satellites, and the collateral damage is becoming impossible to ...