Answer: NOVA

AnswerCrossword Clue
NOVAStar explosion
NOVASmoked salmon, for short
NOVAFormer Chevy
NOVAStar that brightens dramatically
NOVASuper star
NOVABossa ..
NOVA.. Scotia
NOVASpace heater?
NOVAShow in outer space?
NOVAStar with potential
NOVA1960s-'80s Chevy
NOVABriefly visible star
NOVAStellar explosion
NOVABagel topper
NOVASource of a stellar explosion
NOVABygone Chevy compact
NOVAOld Chevy
NOVAMilky Way phenomenon believed to occur almost weekly
NOVAPBS series since 1974
NOVAPBS educational series
novaa star that suddenly increases its light output tremendously and then fades away to its former obscurity in a few months or years
NOVAExploding star
NOVABagel stuffer
NOVAPBS science series
NOVATemporary superstar
NOVAAstral flareup
NOVABright star
NOVANew star on the horizon?
NOVAPopular smoked fish
NOVAVariable star
NOVA... Scotia
NOVAPBS series
NOVAPBS science show
NOVAEruptive star
NOVAAstronomical flare-up
NOVACelestial flare-up
NOVABursting star
NOVAWGBH production
NOVASmoked salmon
NOVAPBS favorite