| YLEM | Supposed protomatter of the universe |
| RESTAURANT | Follow-up to the Hitchhiker's Guide to the Galaxy, The ___ at the End of the Universe (10) |
| CHAOS | The formless matter supposed to have existed before the creation of the universe |
| HOYLE | English astronomer who rejected the "Big Bang" theory of the origins of the universe, d. 2001 (5) |
| COSMOLOGY | The philosophical study of the origin and nature of the universe (9) |
| HEMAN | ___ and the Masters of the Universe popular animated series of the 1980s: Hyph. |
| ALMAGEST | A work on astronomy, compiled by Ptolemy in the 2nd century AD, containing a description of the geocentric system of the universe and a star catalogue |
| PTOLEMAIC | The --- system was a theory which stated that the earth lay at the centre of the universe (9) |
| GAMOW | Who (George ___), with Ralph Alpher and Hans Bethe, developed the "big bang" theory of the origin of the universe? (5) |
| ATARMS | The Heroic Master of Weapons in HeMan and the Masters of the Universe, Man- (2-4) |
| COSMIC | ____ web, a network of filaments of dark matter that may form the basis of the universe (6) |
| MATTER | A gas, liquid, solid or other basic structural component of the universe with a mass and volume; the subject of speech, thought, writing etc; a thing of consequence; or, a concern (6) |
| MEGFOSTER | Actress whose roles include that of Evil-Lyn in the film version of Masters of the Universe |
| SHERA | Princess of Power in the Masters of the Universe |
| COSMOLOGIST | Student of the origins of the universe (11) |
| COSMOGRAPHY | Science of the composition of the universe (11) |
| END | The Restaurant at the _____ of the Universe |
| DARKMATTER | A large proportion of the mass of the universe (4,6) |
| COX | Presenter of numerous BBC science programmes including Wonders of the Universe and Forces of Nature. (3) |
| BIGBANG | According to cosmological theories the event/explosion that led to the formation of the universe (3,4) |
