Answer | Crossword Clue |
---|---|
THEME | What great crosswords contain |
THEMES | All great crosswords have them |
halo | region of space surrounding a galaxy that is sparsely populated with luminous objects (as globular clusters) but is believed to contain a great deal of dark matter |
haloes | region of space surrounding a galaxy that is sparsely populated with luminous objects (as globular clusters) but is believed to contain a great deal of dark matter |