Heat source

Latest answer — September 01, 2026

30 Across

Scroll down for rest of crossword answers

Clue explained

The Sun is Earth’s primary natural source of heat and light.

Clue type:
Definition
A detailed image of the Sun’s glowing, textured surface.

Eugene Sheffer Crossword

This clue's Tuesday, September 01, 2026 appearance

Tap a square to reveal a letter.

Or reveal one clue at a time with the Hint and Answer buttons below.

Across

  1. 1Gestation location
  2. 5IRS employee
  3. 8Pitt of “Troy”
  4. 12“Aloha” actress Stone
  5. 13Hot tub reaction
  6. 14Unctuous
  7. 15Beach bucket
  8. 16Isosceles, for one
  9. 18Cut in three
  10. 20Bay State sch.
  11. 21Fire sign?
  12. 22Chapel vow
  13. 23Wanders
  14. 26Three-note interval in music
  15. 30Heat source
  16. 31Gloomy guy
  17. 32Garden tool
  18. 33Neptune’s spear
  19. 36Baby bird?
  20. 38Buckeyes’ sch.
  21. 39Altar constellation
  22. 40City near Venice
  23. 43Arm muscle
  24. 47Court of justice
  25. 49Yemen neighbor
  26. 50Help a crook
  27. 51Mined matter
  28. 52City bond, for short
  29. 53Swift jets
  30. 54Krypton, for one
  31. 55CEO’s aide

Down

  1. 1Sobbed
  2. 2Actor Epps of “This Is Us”
  3. 3Roman 2002
  4. 4Fragrant wood
  5. 5Throwing game
  6. 6Fraction
  7. 7Sushi fish
  8. 8Witticism
  9. 9Latvia’s capital
  10. 10“-- fair in ...”
  11. 11Turns blue?
  12. 17German car name
  13. 19Curvy letter
  14. 22Apr. addressee
  15. 23Trio after Q
  16. 24Duo’s pronoun
  17. 25Blackbird
  18. 26Boy king
  19. 27Sound of surprise
  20. 28Neither partner
  21. 29“A mouse!”
  22. 31Bearded antelope
  23. 34Misgivings
  24. 35Biblical twin
  25. 36Lanka lead-in
  26. 37City near Seattle
  27. 39Van Gogh’s “Bedroom in --”
  28. 40Sch. book fair sponsors
  29. 41Wall St. traders
  30. 42Food regimen
  31. 43Actress Reid
  32. 44Flightless birds
  33. 45Bad reviews
  34. 46Tizzy
  35. 48Eggy quaff

The answer to “Heat source” in the Eugene Sheffer crossword is SUN — a 3-letter word. It most recently appeared in the Eugene Sheffer crossword on September 1, 2026, a Tuesday puzzle, at 30-Across. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“Heat source” answer

SUN (3 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is SUN.

What does SUN mean?

Reading the plain dictionary sense of SUN is often the fastest way to see why it answers this clue.

(noun)

  • the star round which the earth orbits
  • the light or warmth received from the earth's sun
  • a day or a year

When else has “Heat source” appeared?

Eugene Sheffer reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

September 1, 2026 (most recent) → SUN. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions

What is the answer to “Heat source”?

The answer is SUN, a 3-letter word. It most recently appeared in the Eugene Sheffer crossword on September 1, 2026.

How many letters is the answer to “Heat source”?

3 letters: SUN.

When did this clue appear?

Most recently in the Eugene Sheffer crossword on September 1, 2026 (a Tuesday puzzle), at 30-Across.

Can “Heat source” have a different answer?

Yes — Eugene Sheffer sometimes reuses a clue with a different solution to fit the grid. The answers we've recorded for each date it appeared are listed above when available.

Where can I find the rest of this day's Eugene Sheffer answers?

The full grid for September 1, 2026 is on the Eugene Sheffer answers page, with every clue and answer from that puzzle.

Eugene Sheffer Crossword is published by King Features Syndicate; WordHint is an independent site and is not affiliated with or endorsed by the publisher.

Crossword Clues

Looking up a clue? Jump into today's answers and clue help from top puzzles.