For years, the commercial space sector has been abuzz about the prospect of satellite "super constellations" in Earth orbit.

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

A NASA-funded plan to build a large radio telescope on the moon's far side is nearing final approval and could become a ...

Scientists hunting for Planet Nine, an elusive planetary body that could change our understanding of the solar system, have ...

Astronomers have discovered six asteroids that are ‘potentially dangerous to Earth’. But is there a reason to panic? Venus, ...

Cahokia’s inhabitants built scores of burial mounds, public buildings, and even an astronomical observatory, “Woodhenge,” whose wood posts aligned with the sun throughout the year.