(archaic, intransitive) To study or talk astronomy.

Obsolete form of astronomic.

Any of the extraterrestrial beings that, according to the pseudoscientific belief of paleocontact, visited Earth in the distant past, influencing human culture, technology, or religion.

plural of astronomian

Relating to astronavigation.

plural of ancient astronaut

(astronomy) An observational branch of astronomy, which deals with the study of ultraviolet emission from celestial objects.

(astronomy) An observational branch of astronomy, which deals with the study of gamma-ray emission from celestial objects.

Ice cream that has had most of the water removed from it by a freeze-drying process and been sealed in a pouch, and requires no refrigeration.

plural of massive astronomical compact halo object Alternative form of massive compact halo objects