1) Another name for Apollo 2) Apollo 3) Apollo as god of the sun 4) Apollo as sun god 5) Given name 6) Greek deity 7) Latin boy name 8) Phoebus apollo Found on https://www.crosswordclues.com/clue/phoebus
[lichen] Phoebus is a lichenized genus of fungus in the family Roccellaceae. It contains only one species, Phoebus hydrophobius, found in the Ozarks of the central United States, and described as new to science in 2007. ... Found on http://en.wikipedia.org/wiki/Phoebus_(lichen)
(nuclear reactors) A series of nuclear reactors, designed and built in the 1960s as part of the Rover program, to meet the needs of an interplanetary mission (see nuclear propulsion), in particular a manned mission to Mars. The design requirements were a thrust of 250,000 pounds... Found on http://www.daviddarling.info/encyclopedia/P/Phoebus.html