In Greek mythology, Aether was a god of light and the god of the Upper Sky. He had an especially prominent role in Orphic mythology.

Scheduled to launch on Feb. 27, NASA's PUNCH mission could revolutionize space weather forecasts, unify the solar corona and ...

Matter in intergalactic space is distributed in a vast network of interconnected filamentary structures, collectively ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

A brilliant comet waved its tail above the site of the world's largest telescope as it lit up the night sky last month.

Apocalypse Then Did Caspar David Friedrich really see into the future? A speculative inquiry, by On the heels of major ...