USA TODAY Crossword · 20-Down · 6 letters
XM radio provider named for a star USA TODAY Crossword clue
Editorially reviewed September 12, 2026
Answer · 6 letters
SIRIUS
SIRIUS supplies the six-letter name associated with XM radio. The naming clue refers to the actual star Sirius, not a celebrity: SiriusXM's own branding announcement identifies that stellar connection.
Different crossing letters? Check another fit →Here star means a celestial object
The clue combines a company reference with astronomy. SiriusXM's branding announcement explicitly links the company's name to Sirius, and NASA identifies Sirius as the Dog Star. You are not looking for a famous presenter, performer or celebrity associated with a radio show.
Enter the star name, not the full brand
SIRIUS has six letters: S-I-R-I-U-S. Adding XM would give the longer brand spelling SIRIUSXM, which is not this entry. The star's spelling is also distinct from the ordinary adjective serious; use the verified name and crossing letters rather than spelling it from an approximate sound.
References behind this explanation
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Where this clue appeared
20-Down in USA TODAY Crossword puzzle for September 12, 2026.
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